Home / 31,720.38-43,772.23-17,572.20

Finding the Fourth Proportional to 31,720.38, 43,772.23 and 17,572.20

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Solution

The fourth proportional to 31,720.38, 43,772.23 and 17,572.20 is: 24,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.38 : 43,772.23 = 17,572.20 : x
  2. Step 2: Convert to fraction form
    31,720.38/43,772.23 = 17,572.20/x
  3. Step 3: Cross multiply
    31,720.38x = 43,772.23 × 17,572.20
  4. Step 4: Simplify right side
    31,720.38x = 769,174,138.98
  5. Step 5: Solve for x
    x = 769,174,138.98/31,720.38
  6. Step 6: Final answer
    x = 24,248.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.