Home / 22,182.40-30,614.79-12,750.76

Finding the Fourth Proportional to 22,182.40, 30,614.79 and 12,750.76

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Solution

The fourth proportional to 22,182.40, 30,614.79 and 12,750.76 is: 17,597.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.40 : 30,614.79 = 12,750.76 : x
  2. Step 2: Convert to fraction form
    22,182.40/30,614.79 = 12,750.76/x
  3. Step 3: Cross multiply
    22,182.40x = 30,614.79 × 12,750.76
  4. Step 4: Simplify right side
    22,182.40x = 390,361,839.74
  5. Step 5: Solve for x
    x = 390,361,839.74/22,182.40
  6. Step 6: Final answer
    x = 17,597.82

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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.