Home / 22,377.30-30,881.57-12,818.76

Finding the Fourth Proportional to 22,377.30, 30,881.57 and 12,818.76

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Solution

The fourth proportional to 22,377.30, 30,881.57 and 12,818.76 is: 17,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,377.30 : 30,881.57 = 12,818.76 : x
  2. Step 2: Convert to fraction form
    22,377.30/30,881.57 = 12,818.76/x
  3. Step 3: Cross multiply
    22,377.30x = 30,881.57 × 12,818.76
  4. Step 4: Simplify right side
    22,377.30x = 395,863,370.16
  5. Step 5: Solve for x
    x = 395,863,370.16/22,377.30
  6. Step 6: Final answer
    x = 17,690.40

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Find fourth proportional to 11,188.65, 15,440.78 and 6,409.38
Half scale
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Double scale
Find fourth proportional to 22,378.30, 30,882.95 and 12,819.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.