Home / 39,591.46-54,636.15-21,687.22

Finding the Fourth Proportional to 39,591.46, 54,636.15 and 21,687.22

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Solution

The fourth proportional to 39,591.46, 54,636.15 and 21,687.22 is: 29,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,591.46 : 54,636.15 = 21,687.22 : x
  2. Step 2: Convert to fraction form
    39,591.46/54,636.15 = 21,687.22/x
  3. Step 3: Cross multiply
    39,591.46x = 54,636.15 × 21,687.22
  4. Step 4: Simplify right side
    39,591.46x = 1,184,906,205.00
  5. Step 5: Solve for x
    x = 1,184,906,205.00/39,591.46
  6. Step 6: Final answer
    x = 29,928.33

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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.