Home / 39,380.88-54,355.95-22,395.06

Finding the Fourth Proportional to 39,380.88, 54,355.95 and 22,395.06

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Solution

The fourth proportional to 39,380.88, 54,355.95 and 22,395.06 is: 30,911.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,380.88 : 54,355.95 = 22,395.06 : x
  2. Step 2: Convert to fraction form
    39,380.88/54,355.95 = 22,395.06/x
  3. Step 3: Cross multiply
    39,380.88x = 54,355.95 × 22,395.06
  4. Step 4: Simplify right side
    39,380.88x = 1,217,304,761.61
  5. Step 5: Solve for x
    x = 1,217,304,761.61/39,380.88
  6. Step 6: Final answer
    x = 30,911.06

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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.