Home / 38,147.45-52,642.94-21,151.73

Finding the Fourth Proportional to 38,147.45, 52,642.94 and 21,151.73

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Solution

The fourth proportional to 38,147.45, 52,642.94 and 21,151.73 is: 29,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.45 : 52,642.94 = 21,151.73 : x
  2. Step 2: Convert to fraction form
    38,147.45/52,642.94 = 21,151.73/x
  3. Step 3: Cross multiply
    38,147.45x = 52,642.94 × 21,151.73
  4. Step 4: Simplify right side
    38,147.45x = 1,113,488,884.31
  5. Step 5: Solve for x
    x = 1,113,488,884.31/38,147.45
  6. Step 6: Final answer
    x = 29,189.08

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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.