Home / 39,677.25-54,758.17-21,775.76

Finding the Fourth Proportional to 39,677.25, 54,758.17 and 21,775.76

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Solution

The fourth proportional to 39,677.25, 54,758.17 and 21,775.76 is: 30,052.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.25 : 54,758.17 = 21,775.76 : x
  2. Step 2: Convert to fraction form
    39,677.25/54,758.17 = 21,775.76/x
  3. Step 3: Cross multiply
    39,677.25x = 54,758.17 × 21,775.76
  4. Step 4: Simplify right side
    39,677.25x = 1,192,400,767.96
  5. Step 5: Solve for x
    x = 1,192,400,767.96/39,677.25
  6. Step 6: Final answer
    x = 30,052.51

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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.