Home / 25,845.12-38,761.20-18,906.84

Finding the Fourth Proportional to 25,845.12, 38,761.20 and 18,906.84

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Solution

The fourth proportional to 25,845.12, 38,761.20 and 18,906.84 is: 28,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.12 : 38,761.20 = 18,906.84 : x
  2. Step 2: Convert to fraction form
    25,845.12/38,761.20 = 18,906.84/x
  3. Step 3: Cross multiply
    25,845.12x = 38,761.20 × 18,906.84
  4. Step 4: Simplify right side
    25,845.12x = 732,851,806.61
  5. Step 5: Solve for x
    x = 732,851,806.61/25,845.12
  6. Step 6: Final answer
    x = 28,355.52

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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.