Home / 39,525.15-54,545.49-21,620.10

Finding the Fourth Proportional to 39,525.15, 54,545.49 and 21,620.10

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Solution

The fourth proportional to 39,525.15, 54,545.49 and 21,620.10 is: 29,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,525.15 : 54,545.49 = 21,620.10 : x
  2. Step 2: Convert to fraction form
    39,525.15/54,545.49 = 21,620.10/x
  3. Step 3: Cross multiply
    39,525.15x = 54,545.49 × 21,620.10
  4. Step 4: Simplify right side
    39,525.15x = 1,179,278,948.35
  5. Step 5: Solve for x
    x = 1,179,278,948.35/39,525.15
  6. Step 6: Final answer
    x = 29,836.17

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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.