Home / 39,720.83-59,581.17-10,138.65

Finding the Fourth Proportional to 39,720.83, 59,581.17 and 10,138.65

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Solution

The fourth proportional to 39,720.83, 59,581.17 and 10,138.65 is: 15,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.83 : 59,581.17 = 10,138.65 : x
  2. Step 2: Convert to fraction form
    39,720.83/59,581.17 = 10,138.65/x
  3. Step 3: Cross multiply
    39,720.83x = 59,581.17 × 10,138.65
  4. Step 4: Simplify right side
    39,720.83x = 604,072,629.22
  5. Step 5: Solve for x
    x = 604,072,629.22/39,720.83
  6. Step 6: Final answer
    x = 15,207.96

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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.