Home / 39,649.13-54,715.41-21,744.08

Finding the Fourth Proportional to 39,649.13, 54,715.41 and 21,744.08

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Solution

The fourth proportional to 39,649.13, 54,715.41 and 21,744.08 is: 30,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.13 : 54,715.41 = 21,744.08 : x
  2. Step 2: Convert to fraction form
    39,649.13/54,715.41 = 21,744.08/x
  3. Step 3: Cross multiply
    39,649.13x = 54,715.41 × 21,744.08
  4. Step 4: Simplify right side
    39,649.13x = 1,189,735,978.70
  5. Step 5: Solve for x
    x = 1,189,735,978.70/39,649.13
  6. Step 6: Final answer
    x = 30,006.61

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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.