Home / 22,715.28-31,321.44-15,998.64

Finding the Fourth Proportional to 22,715.28, 31,321.44 and 15,998.64

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Solution

The fourth proportional to 22,715.28, 31,321.44 and 15,998.64 is: 22,060.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,715.28 : 31,321.44 = 15,998.64 : x
  2. Step 2: Convert to fraction form
    22,715.28/31,321.44 = 15,998.64/x
  3. Step 3: Cross multiply
    22,715.28x = 31,321.44 × 15,998.64
  4. Step 4: Simplify right side
    22,715.28x = 501,100,442.84
  5. Step 5: Solve for x
    x = 501,100,442.84/22,715.28
  6. Step 6: Final answer
    x = 22,060.06

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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.