Home / 31,742.92-47,645.34-15,114.43

Finding the Fourth Proportional to 31,742.92, 47,645.34 and 15,114.43

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Solution

The fourth proportional to 31,742.92, 47,645.34 and 15,114.43 is: 22,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.92 : 47,645.34 = 15,114.43 : x
  2. Step 2: Convert to fraction form
    31,742.92/47,645.34 = 15,114.43/x
  3. Step 3: Cross multiply
    31,742.92x = 47,645.34 × 15,114.43
  4. Step 4: Simplify right side
    31,742.92x = 720,132,156.26
  5. Step 5: Solve for x
    x = 720,132,156.26/31,742.92
  6. Step 6: Final answer
    x = 22,686.39

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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.