Home / 29,020.80-43,531.20-13,429.92

Finding the Fourth Proportional to 29,020.80, 43,531.20 and 13,429.92

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Solution

The fourth proportional to 29,020.80, 43,531.20 and 13,429.92 is: 20,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,020.80 : 43,531.20 = 13,429.92 : x
  2. Step 2: Convert to fraction form
    29,020.80/43,531.20 = 13,429.92/x
  3. Step 3: Cross multiply
    29,020.80x = 43,531.20 × 13,429.92
  4. Step 4: Simplify right side
    29,020.80x = 584,620,533.50
  5. Step 5: Solve for x
    x = 584,620,533.50/29,020.80
  6. Step 6: Final answer
    x = 20,144.88

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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.