Home / 39,138.58-58,699.15-11,061.26

Finding the Fourth Proportional to 39,138.58, 58,699.15 and 11,061.26

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Solution

The fourth proportional to 39,138.58, 58,699.15 and 11,061.26 is: 16,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.58 : 58,699.15 = 11,061.26 : x
  2. Step 2: Convert to fraction form
    39,138.58/58,699.15 = 11,061.26/x
  3. Step 3: Cross multiply
    39,138.58x = 58,699.15 × 11,061.26
  4. Step 4: Simplify right side
    39,138.58x = 649,286,211.13
  5. Step 5: Solve for x
    x = 649,286,211.13/39,138.58
  6. Step 6: Final answer
    x = 16,589.42

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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.