Home / 28,480.05-42,724.16-8,760.27

Finding the Fourth Proportional to 28,480.05, 42,724.16 and 8,760.27

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Solution

The fourth proportional to 28,480.05, 42,724.16 and 8,760.27 is: 13,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.05 : 42,724.16 = 8,760.27 : x
  2. Step 2: Convert to fraction form
    28,480.05/42,724.16 = 8,760.27/x
  3. Step 3: Cross multiply
    28,480.05x = 42,724.16 × 8,760.27
  4. Step 4: Simplify right side
    28,480.05x = 374,275,177.12
  5. Step 5: Solve for x
    x = 374,275,177.12/28,480.05
  6. Step 6: Final answer
    x = 13,141.66

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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.