Home / 27,847.12-38,431.06-15,910.20

Finding the Fourth Proportional to 27,847.12, 38,431.06 and 15,910.20

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Solution

The fourth proportional to 27,847.12, 38,431.06 and 15,910.20 is: 21,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.12 : 38,431.06 = 15,910.20 : x
  2. Step 2: Convert to fraction form
    27,847.12/38,431.06 = 15,910.20/x
  3. Step 3: Cross multiply
    27,847.12x = 38,431.06 × 15,910.20
  4. Step 4: Simplify right side
    27,847.12x = 611,445,702.95
  5. Step 5: Solve for x
    x = 611,445,702.95/27,847.12
  6. Step 6: Final answer
    x = 21,957.24

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.