Home / 15,116.80-22,675.20-13,731.70

Finding the Fourth Proportional to 15,116.80, 22,675.20 and 13,731.70

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Solution

The fourth proportional to 15,116.80, 22,675.20 and 13,731.70 is: 20,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.80 : 22,675.20 = 13,731.70 : x
  2. Step 2: Convert to fraction form
    15,116.80/22,675.20 = 13,731.70/x
  3. Step 3: Cross multiply
    15,116.80x = 22,675.20 × 13,731.70
  4. Step 4: Simplify right side
    15,116.80x = 311,369,043.84
  5. Step 5: Solve for x
    x = 311,369,043.84/15,116.80
  6. Step 6: Final answer
    x = 20,597.55

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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.