Home / 29,278.90-40,387.17-21,614.59

Finding the Fourth Proportional to 29,278.90, 40,387.17 and 21,614.59

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Solution

The fourth proportional to 29,278.90, 40,387.17 and 21,614.59 is: 29,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.90 : 40,387.17 = 21,614.59 : x
  2. Step 2: Convert to fraction form
    29,278.90/40,387.17 = 21,614.59/x
  3. Step 3: Cross multiply
    29,278.90x = 40,387.17 × 21,614.59
  4. Step 4: Simplify right side
    29,278.90x = 872,952,120.81
  5. Step 5: Solve for x
    x = 872,952,120.81/29,278.90
  6. Step 6: Final answer
    x = 29,815.06

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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.