Home / 39,151.44-54,029.12-21,246.62

Finding the Fourth Proportional to 39,151.44, 54,029.12 and 21,246.62

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Solution

The fourth proportional to 39,151.44, 54,029.12 and 21,246.62 is: 29,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.44 : 54,029.12 = 21,246.62 : x
  2. Step 2: Convert to fraction form
    39,151.44/54,029.12 = 21,246.62/x
  3. Step 3: Cross multiply
    39,151.44x = 54,029.12 × 21,246.62
  4. Step 4: Simplify right side
    39,151.44x = 1,147,935,805.20
  5. Step 5: Solve for x
    x = 1,147,935,805.20/39,151.44
  6. Step 6: Final answer
    x = 29,320.40

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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.