Home / 39,151.86-54,028.02-21,246.24

Finding the Fourth Proportional to 39,151.86, 54,028.02 and 21,246.24

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Solution

The fourth proportional to 39,151.86, 54,028.02 and 21,246.24 is: 29,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.86 : 54,028.02 = 21,246.24 : x
  2. Step 2: Convert to fraction form
    39,151.86/54,028.02 = 21,246.24/x
  3. Step 3: Cross multiply
    39,151.86x = 54,028.02 × 21,246.24
  4. Step 4: Simplify right side
    39,151.86x = 1,147,892,279.64
  5. Step 5: Solve for x
    x = 1,147,892,279.64/39,151.86
  6. Step 6: Final answer
    x = 29,318.97

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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.