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Finding the Fourth Proportional to 21,753.25, 32,625.96 and 9,904.20

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Solution

The fourth proportional to 21,753.25, 32,625.96 and 9,904.20 is: 14,854.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.25 : 32,625.96 = 9,904.20 : x
  2. Step 2: Convert to fraction form
    21,753.25/32,625.96 = 9,904.20/x
  3. Step 3: Cross multiply
    21,753.25x = 32,625.96 × 9,904.20
  4. Step 4: Simplify right side
    21,753.25x = 323,134,033.03
  5. Step 5: Solve for x
    x = 323,134,033.03/21,753.25
  6. Step 6: Final answer
    x = 14,854.52

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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.