Home / 28,159.08-42,236.16-8,442.12

Finding the Fourth Proportional to 28,159.08, 42,236.16 and 8,442.12

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Solution

The fourth proportional to 28,159.08, 42,236.16 and 8,442.12 is: 12,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.08 : 42,236.16 = 8,442.12 : x
  2. Step 2: Convert to fraction form
    28,159.08/42,236.16 = 8,442.12/x
  3. Step 3: Cross multiply
    28,159.08x = 42,236.16 × 8,442.12
  4. Step 4: Simplify right side
    28,159.08x = 356,562,731.06
  5. Step 5: Solve for x
    x = 356,562,731.06/28,159.08
  6. Step 6: Final answer
    x = 12,662.44

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Half scale
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Double scale
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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.