Home / 39,814.22-59,729.97-12,111.50

Finding the Fourth Proportional to 39,814.22, 59,729.97 and 12,111.50

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Solution

The fourth proportional to 39,814.22, 59,729.97 and 12,111.50 is: 18,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.22 : 59,729.97 = 12,111.50 : x
  2. Step 2: Convert to fraction form
    39,814.22/59,729.97 = 12,111.50/x
  3. Step 3: Cross multiply
    39,814.22x = 59,729.97 × 12,111.50
  4. Step 4: Simplify right side
    39,814.22x = 723,419,531.66
  5. Step 5: Solve for x
    x = 723,419,531.66/39,814.22
  6. Step 6: Final answer
    x = 18,169.88

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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.