Home / 38,678.28-53,406.18-29,711.58

Finding the Fourth Proportional to 38,678.28, 53,406.18 and 29,711.58

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Solution

The fourth proportional to 38,678.28, 53,406.18 and 29,711.58 is: 41,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,678.28 : 53,406.18 = 29,711.58 : x
  2. Step 2: Convert to fraction form
    38,678.28/53,406.18 = 29,711.58/x
  3. Step 3: Cross multiply
    38,678.28x = 53,406.18 × 29,711.58
  4. Step 4: Simplify right side
    38,678.28x = 1,586,781,989.56
  5. Step 5: Solve for x
    x = 1,586,781,989.56/38,678.28
  6. Step 6: Final answer
    x = 41,025.14

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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.