Home / 22,276.45-30,742.51-12,718.92

Finding the Fourth Proportional to 22,276.45, 30,742.51 and 12,718.92

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Solution

The fourth proportional to 22,276.45, 30,742.51 and 12,718.92 is: 17,552.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.45 : 30,742.51 = 12,718.92 : x
  2. Step 2: Convert to fraction form
    22,276.45/30,742.51 = 12,718.92/x
  3. Step 3: Cross multiply
    22,276.45x = 30,742.51 × 12,718.92
  4. Step 4: Simplify right side
    22,276.45x = 391,011,541.19
  5. Step 5: Solve for x
    x = 391,011,541.19/22,276.45
  6. Step 6: Final answer
    x = 17,552.69

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Double scale
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Similar ratio
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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.