Home / 21,635.48-32,383.96-15,691.70

Finding the Fourth Proportional to 21,635.48, 32,383.96 and 15,691.70

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Solution

The fourth proportional to 21,635.48, 32,383.96 and 15,691.70 is: 23,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.48 : 32,383.96 = 15,691.70 : x
  2. Step 2: Convert to fraction form
    21,635.48/32,383.96 = 15,691.70/x
  3. Step 3: Cross multiply
    21,635.48x = 32,383.96 × 15,691.70
  4. Step 4: Simplify right side
    21,635.48x = 508,159,385.13
  5. Step 5: Solve for x
    x = 508,159,385.13/21,635.48
  6. Step 6: Final answer
    x = 23,487.32

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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.