Home / 28,232.10-42,331.41-18,882.54

Finding the Fourth Proportional to 28,232.10, 42,331.41 and 18,882.54

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Solution

The fourth proportional to 28,232.10, 42,331.41 and 18,882.54 is: 28,312.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.10 : 42,331.41 = 18,882.54 : x
  2. Step 2: Convert to fraction form
    28,232.10/42,331.41 = 18,882.54/x
  3. Step 3: Cross multiply
    28,232.10x = 42,331.41 × 18,882.54
  4. Step 4: Simplify right side
    28,232.10x = 799,324,542.58
  5. Step 5: Solve for x
    x = 799,324,542.58/28,232.10
  6. Step 6: Final answer
    x = 28,312.61

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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.