Home / 39,649.19-54,717.46-21,744.85

Finding the Fourth Proportional to 39,649.19, 54,717.46 and 21,744.85

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Solution

The fourth proportional to 39,649.19, 54,717.46 and 21,744.85 is: 30,008.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.19 : 54,717.46 = 21,744.85 : x
  2. Step 2: Convert to fraction form
    39,649.19/54,717.46 = 21,744.85/x
  3. Step 3: Cross multiply
    39,649.19x = 54,717.46 × 21,744.85
  4. Step 4: Simplify right side
    39,649.19x = 1,189,822,577.77
  5. Step 5: Solve for x
    x = 1,189,822,577.77/39,649.19
  6. Step 6: Final answer
    x = 30,008.75

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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.