Home / 21,634.98-32,383.22-15,691.20

Finding the Fourth Proportional to 21,634.98, 32,383.22 and 15,691.20

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Solution

The fourth proportional to 21,634.98, 32,383.22 and 15,691.20 is: 23,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.98 : 32,383.22 = 15,691.20 : x
  2. Step 2: Convert to fraction form
    21,634.98/32,383.22 = 15,691.20/x
  3. Step 3: Cross multiply
    21,634.98x = 32,383.22 × 15,691.20
  4. Step 4: Simplify right side
    21,634.98x = 508,131,503.21
  5. Step 5: Solve for x
    x = 508,131,503.21/21,634.98
  6. Step 6: Final answer
    x = 23,486.57

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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.