Home / 39,319.50-54,260.10-21,414.82

Finding the Fourth Proportional to 39,319.50, 54,260.10 and 21,414.82

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Solution

The fourth proportional to 39,319.50, 54,260.10 and 21,414.82 is: 29,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.50 : 54,260.10 = 21,414.82 : x
  2. Step 2: Convert to fraction form
    39,319.50/54,260.10 = 21,414.82/x
  3. Step 3: Cross multiply
    39,319.50x = 54,260.10 × 21,414.82
  4. Step 4: Simplify right side
    39,319.50x = 1,161,970,274.68
  5. Step 5: Solve for x
    x = 1,161,970,274.68/39,319.50
  6. Step 6: Final answer
    x = 29,552.01

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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.