Home / 25,153.60-37,729.12-8,521.60

Finding the Fourth Proportional to 25,153.60, 37,729.12 and 8,521.60

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Solution

The fourth proportional to 25,153.60, 37,729.12 and 8,521.60 is: 12,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,153.60 : 37,729.12 = 8,521.60 : x
  2. Step 2: Convert to fraction form
    25,153.60/37,729.12 = 8,521.60/x
  3. Step 3: Cross multiply
    25,153.60x = 37,729.12 × 8,521.60
  4. Step 4: Simplify right side
    25,153.60x = 321,512,468.99
  5. Step 5: Solve for x
    x = 321,512,468.99/25,153.60
  6. Step 6: Final answer
    x = 12,781.97

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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.