Home / 38,721.28-58,053.60-12,411.04

Finding the Fourth Proportional to 38,721.28, 58,053.60 and 12,411.04

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Solution

The fourth proportional to 38,721.28, 58,053.60 and 12,411.04 is: 18,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721.28 : 58,053.60 = 12,411.04 : x
  2. Step 2: Convert to fraction form
    38,721.28/58,053.60 = 12,411.04/x
  3. Step 3: Cross multiply
    38,721.28x = 58,053.60 × 12,411.04
  4. Step 4: Simplify right side
    38,721.28x = 720,505,551.74
  5. Step 5: Solve for x
    x = 720,505,551.74/38,721.28
  6. Step 6: Final answer
    x = 18,607.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.