Home / 38,102.38-52,581.44-21,106.25

Finding the Fourth Proportional to 38,102.38, 52,581.44 and 21,106.25

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Solution

The fourth proportional to 38,102.38, 52,581.44 and 21,106.25 is: 29,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,102.38 : 52,581.44 = 21,106.25 : x
  2. Step 2: Convert to fraction form
    38,102.38/52,581.44 = 21,106.25/x
  3. Step 3: Cross multiply
    38,102.38x = 52,581.44 × 21,106.25
  4. Step 4: Simplify right side
    38,102.38x = 1,109,797,018
  5. Step 5: Solve for x
    x = 1,109,797,018/38,102.38
  6. Step 6: Final answer
    x = 29,126.71

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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.