Home / 20,649.52-31,024.92-13,257.04

Finding the Fourth Proportional to 20,649.52, 31,024.92 and 13,257.04

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Solution

The fourth proportional to 20,649.52, 31,024.92 and 13,257.04 is: 19,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.52 : 31,024.92 = 13,257.04 : x
  2. Step 2: Convert to fraction form
    20,649.52/31,024.92 = 13,257.04/x
  3. Step 3: Cross multiply
    20,649.52x = 31,024.92 × 13,257.04
  4. Step 4: Simplify right side
    20,649.52x = 411,298,605.44
  5. Step 5: Solve for x
    x = 411,298,605.44/20,649.52
  6. Step 6: Final answer
    x = 19,918.07

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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.