Home / 31,977.01-47,972.45-12,255.59

Finding the Fourth Proportional to 31,977.01, 47,972.45 and 12,255.59

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Solution

The fourth proportional to 31,977.01, 47,972.45 and 12,255.59 is: 18,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.01 : 47,972.45 = 12,255.59 : x
  2. Step 2: Convert to fraction form
    31,977.01/47,972.45 = 12,255.59/x
  3. Step 3: Cross multiply
    31,977.01x = 47,972.45 × 12,255.59
  4. Step 4: Simplify right side
    31,977.01x = 587,930,559.22
  5. Step 5: Solve for x
    x = 587,930,559.22/31,977.01
  6. Step 6: Final answer
    x = 18,386.04

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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.