Home / 28,439.92-42,661.83-8,732.23

Finding the Fourth Proportional to 28,439.92, 42,661.83 and 8,732.23

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Solution

The fourth proportional to 28,439.92, 42,661.83 and 8,732.23 is: 13,098.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.92 : 42,661.83 = 8,732.23 : x
  2. Step 2: Convert to fraction form
    28,439.92/42,661.83 = 8,732.23/x
  3. Step 3: Cross multiply
    28,439.92x = 42,661.83 × 8,732.23
  4. Step 4: Simplify right side
    28,439.92x = 372,532,911.78
  5. Step 5: Solve for x
    x = 372,532,911.78/28,439.92
  6. Step 6: Final answer
    x = 13,098.94

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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.