Home / 28,279.62-42,419.46-8,558.16

Finding the Fourth Proportional to 28,279.62, 42,419.46 and 8,558.16

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Solution

The fourth proportional to 28,279.62, 42,419.46 and 8,558.16 is: 12,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.62 : 42,419.46 = 8,558.16 : x
  2. Step 2: Convert to fraction form
    28,279.62/42,419.46 = 8,558.16/x
  3. Step 3: Cross multiply
    28,279.62x = 42,419.46 × 8,558.16
  4. Step 4: Simplify right side
    28,279.62x = 363,032,525.79
  5. Step 5: Solve for x
    x = 363,032,525.79/28,279.62
  6. Step 6: Final answer
    x = 12,837.25

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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.