Home / 22,921.20-34,381.80-13,079.70

Finding the Fourth Proportional to 22,921.20, 34,381.80 and 13,079.70

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Solution

The fourth proportional to 22,921.20, 34,381.80 and 13,079.70 is: 19,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.20 : 34,381.80 = 13,079.70 : x
  2. Step 2: Convert to fraction form
    22,921.20/34,381.80 = 13,079.70/x
  3. Step 3: Cross multiply
    22,921.20x = 34,381.80 × 13,079.70
  4. Step 4: Simplify right side
    22,921.20x = 449,703,629.46
  5. Step 5: Solve for x
    x = 449,703,629.46/22,921.20
  6. Step 6: Final answer
    x = 19,619.55

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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.