Home / 29,123.20-43,619.15-20,397.06

Finding the Fourth Proportional to 29,123.20, 43,619.15 and 20,397.06

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Solution

The fourth proportional to 29,123.20, 43,619.15 and 20,397.06 is: 30,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,123.20 : 43,619.15 = 20,397.06 : x
  2. Step 2: Convert to fraction form
    29,123.20/43,619.15 = 20,397.06/x
  3. Step 3: Cross multiply
    29,123.20x = 43,619.15 × 20,397.06
  4. Step 4: Simplify right side
    29,123.20x = 889,702,419.70
  5. Step 5: Solve for x
    x = 889,702,419.70/29,123.20
  6. Step 6: Final answer
    x = 30,549.61

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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.