Home / 39,841.92-59,771.52-12,142.08

Finding the Fourth Proportional to 39,841.92, 59,771.52 and 12,142.08

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Solution

The fourth proportional to 39,841.92, 59,771.52 and 12,142.08 is: 18,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,841.92 : 59,771.52 = 12,142.08 : x
  2. Step 2: Convert to fraction form
    39,841.92/59,771.52 = 12,142.08/x
  3. Step 3: Cross multiply
    39,841.92x = 59,771.52 × 12,142.08
  4. Step 4: Simplify right side
    39,841.92x = 725,750,577.56
  5. Step 5: Solve for x
    x = 725,750,577.56/39,841.92
  6. Step 6: Final answer
    x = 18,215.75

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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.