Home / 22,982.90-31,720.53-13,550.90

Finding the Fourth Proportional to 22,982.90, 31,720.53 and 13,550.90

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Solution

The fourth proportional to 22,982.90, 31,720.53 and 13,550.90 is: 18,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,982.90 : 31,720.53 = 13,550.90 : x
  2. Step 2: Convert to fraction form
    22,982.90/31,720.53 = 13,550.90/x
  3. Step 3: Cross multiply
    22,982.90x = 31,720.53 × 13,550.90
  4. Step 4: Simplify right side
    22,982.90x = 429,841,729.98
  5. Step 5: Solve for x
    x = 429,841,729.98/22,982.90
  6. Step 6: Final answer
    x = 18,702.68

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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.