Home / 21,583.20-32,380.20-17,157.60

Finding the Fourth Proportional to 21,583.20, 32,380.20 and 17,157.60

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Solution

The fourth proportional to 21,583.20, 32,380.20 and 17,157.60 is: 25,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.20 : 32,380.20 = 17,157.60 : x
  2. Step 2: Convert to fraction form
    21,583.20/32,380.20 = 17,157.60/x
  3. Step 3: Cross multiply
    21,583.20x = 32,380.20 × 17,157.60
  4. Step 4: Simplify right side
    21,583.20x = 555,566,519.52
  5. Step 5: Solve for x
    x = 555,566,519.52/21,583.20
  6. Step 6: Final answer
    x = 25,740.69

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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.