Home / 21,577.20-32,371.20-17,151.60

Finding the Fourth Proportional to 21,577.20, 32,371.20 and 17,151.60

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Solution

The fourth proportional to 21,577.20, 32,371.20 and 17,151.60 is: 25,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,577.20 : 32,371.20 = 17,151.60 : x
  2. Step 2: Convert to fraction form
    21,577.20/32,371.20 = 17,151.60/x
  3. Step 3: Cross multiply
    21,577.20x = 32,371.20 × 17,151.60
  4. Step 4: Simplify right side
    21,577.20x = 555,217,873.92
  5. Step 5: Solve for x
    x = 555,217,873.92/21,577.20
  6. Step 6: Final answer
    x = 25,731.69

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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.