Home / 29,306.11-40,442.38-15,877.71

Finding the Fourth Proportional to 29,306.11, 40,442.38 and 15,877.71

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Solution

The fourth proportional to 29,306.11, 40,442.38 and 15,877.71 is: 21,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,306.11 : 40,442.38 = 15,877.71 : x
  2. Step 2: Convert to fraction form
    29,306.11/40,442.38 = 15,877.71/x
  3. Step 3: Cross multiply
    29,306.11x = 40,442.38 × 15,877.71
  4. Step 4: Simplify right side
    29,306.11x = 642,132,381.35
  5. Step 5: Solve for x
    x = 642,132,381.35/29,306.11
  6. Step 6: Final answer
    x = 21,911.21

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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.