Home / 29,149.20-43,723.80-9,428.40

Finding the Fourth Proportional to 29,149.20, 43,723.80 and 9,428.40

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Solution

The fourth proportional to 29,149.20, 43,723.80 and 9,428.40 is: 14,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,149.20 : 43,723.80 = 9,428.40 : x
  2. Step 2: Convert to fraction form
    29,149.20/43,723.80 = 9,428.40/x
  3. Step 3: Cross multiply
    29,149.20x = 43,723.80 × 9,428.40
  4. Step 4: Simplify right side
    29,149.20x = 412,245,475.92
  5. Step 5: Solve for x
    x = 412,245,475.92/29,149.20
  6. Step 6: Final answer
    x = 14,142.60

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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.