Home / 25,278.45-34,891.20-14,671.50

Finding the Fourth Proportional to 25,278.45, 34,891.20 and 14,671.50

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Solution

The fourth proportional to 25,278.45, 34,891.20 and 14,671.50 is: 20,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278.45 : 34,891.20 = 14,671.50 : x
  2. Step 2: Convert to fraction form
    25,278.45/34,891.20 = 14,671.50/x
  3. Step 3: Cross multiply
    25,278.45x = 34,891.20 × 14,671.50
  4. Step 4: Simplify right side
    25,278.45x = 511,906,240.80
  5. Step 5: Solve for x
    x = 511,906,240.80/25,278.45
  6. Step 6: Final answer
    x = 20,250.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.