Home / 43,601.28-65,382.47-12,429.24

Finding the Fourth Proportional to 43,601.28, 65,382.47 and 12,429.24

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Solution

The fourth proportional to 43,601.28, 65,382.47 and 12,429.24 is: 18,638.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,601.28 : 65,382.47 = 12,429.24 : x
  2. Step 2: Convert to fraction form
    43,601.28/65,382.47 = 12,429.24/x
  3. Step 3: Cross multiply
    43,601.28x = 65,382.47 × 12,429.24
  4. Step 4: Simplify right side
    43,601.28x = 812,654,411.42
  5. Step 5: Solve for x
    x = 812,654,411.42/43,601.28
  6. Step 6: Final answer
    x = 18,638.32

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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.