Home / 21,557.60-32,336.40-17,151.20

Finding the Fourth Proportional to 21,557.60, 32,336.40 and 17,151.20

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Solution

The fourth proportional to 21,557.60, 32,336.40 and 17,151.20 is: 25,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.60 : 32,336.40 = 17,151.20 : x
  2. Step 2: Convert to fraction form
    21,557.60/32,336.40 = 17,151.20/x
  3. Step 3: Cross multiply
    21,557.60x = 32,336.40 × 17,151.20
  4. Step 4: Simplify right side
    21,557.60x = 554,608,063.68
  5. Step 5: Solve for x
    x = 554,608,063.68/21,557.60
  6. Step 6: Final answer
    x = 25,726.80

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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.