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Finding the Fourth Proportional to 28,321.44, 42,482.24 and 8,600.16

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Solution

The fourth proportional to 28,321.44, 42,482.24 and 8,600.16 is: 12,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.44 : 42,482.24 = 8,600.16 : x
  2. Step 2: Convert to fraction form
    28,321.44/42,482.24 = 8,600.16/x
  3. Step 3: Cross multiply
    28,321.44x = 42,482.24 × 8,600.16
  4. Step 4: Simplify right side
    28,321.44x = 365,354,061.16
  5. Step 5: Solve for x
    x = 365,354,061.16/28,321.44
  6. Step 6: Final answer
    x = 12,900.26

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Similar ratio
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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.