Home / 22,201.76-30,643.44-15,131.04

Finding the Fourth Proportional to 22,201.76, 30,643.44 and 15,131.04

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Solution

The fourth proportional to 22,201.76, 30,643.44 and 15,131.04 is: 20,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.76 : 30,643.44 = 15,131.04 : x
  2. Step 2: Convert to fraction form
    22,201.76/30,643.44 = 15,131.04/x
  3. Step 3: Cross multiply
    22,201.76x = 30,643.44 × 15,131.04
  4. Step 4: Simplify right side
    22,201.76x = 463,667,116.38
  5. Step 5: Solve for x
    x = 463,667,116.38/22,201.76
  6. Step 6: Final answer
    x = 20,884.25

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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.