Home / 39,138.52-58,718.10-11,058.64

Finding the Fourth Proportional to 39,138.52, 58,718.10 and 11,058.64

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Solution

The fourth proportional to 39,138.52, 58,718.10 and 11,058.64 is: 16,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.52 : 58,718.10 = 11,058.64 : x
  2. Step 2: Convert to fraction form
    39,138.52/58,718.10 = 11,058.64/x
  3. Step 3: Cross multiply
    39,138.52x = 58,718.10 × 11,058.64
  4. Step 4: Simplify right side
    39,138.52x = 649,342,329.38
  5. Step 5: Solve for x
    x = 649,342,329.38/39,138.52
  6. Step 6: Final answer
    x = 16,590.88

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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.