Home / 31,789.38-47,675.68-15,116.20

Finding the Fourth Proportional to 31,789.38, 47,675.68 and 15,116.20

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Solution

The fourth proportional to 31,789.38, 47,675.68 and 15,116.20 is: 22,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789.38 : 47,675.68 = 15,116.20 : x
  2. Step 2: Convert to fraction form
    31,789.38/47,675.68 = 15,116.20/x
  3. Step 3: Cross multiply
    31,789.38x = 47,675.68 × 15,116.20
  4. Step 4: Simplify right side
    31,789.38x = 720,675,114.02
  5. Step 5: Solve for x
    x = 720,675,114.02/31,789.38
  6. Step 6: Final answer
    x = 22,670.31

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1.5x scale

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.