Home / 38,393.38-52,975.85-21,397.20

Finding the Fourth Proportional to 38,393.38, 52,975.85 and 21,397.20

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Solution

The fourth proportional to 38,393.38, 52,975.85 and 21,397.20 is: 29,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.38 : 52,975.85 = 21,397.20 : x
  2. Step 2: Convert to fraction form
    38,393.38/52,975.85 = 21,397.20/x
  3. Step 3: Cross multiply
    38,393.38x = 52,975.85 × 21,397.20
  4. Step 4: Simplify right side
    38,393.38x = 1,133,534,857.62
  5. Step 5: Solve for x
    x = 1,133,534,857.62/38,393.38
  6. Step 6: Final answer
    x = 29,524.23

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Half scale
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Double scale
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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.