Home / 39,327.17-54,272.32-21,422.13

Finding the Fourth Proportional to 39,327.17, 54,272.32 and 21,422.13

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Solution

The fourth proportional to 39,327.17, 54,272.32 and 21,422.13 is: 29,562.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.17 : 54,272.32 = 21,422.13 : x
  2. Step 2: Convert to fraction form
    39,327.17/54,272.32 = 21,422.13/x
  3. Step 3: Cross multiply
    39,327.17x = 54,272.32 × 21,422.13
  4. Step 4: Simplify right side
    39,327.17x = 1,162,628,694.44
  5. Step 5: Solve for x
    x = 1,162,628,694.44/39,327.17
  6. Step 6: Final answer
    x = 29,562.99

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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.