Home / 38,111.85-52,593.68-21,115.76

Finding the Fourth Proportional to 38,111.85, 52,593.68 and 21,115.76

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Solution

The fourth proportional to 38,111.85, 52,593.68 and 21,115.76 is: 29,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.85 : 52,593.68 = 21,115.76 : x
  2. Step 2: Convert to fraction form
    38,111.85/52,593.68 = 21,115.76/x
  3. Step 3: Cross multiply
    38,111.85x = 52,593.68 × 21,115.76
  4. Step 4: Simplify right side
    38,111.85x = 1,110,555,155.85
  5. Step 5: Solve for x
    x = 1,110,555,155.85/38,111.85
  6. Step 6: Final answer
    x = 29,139.37

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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.