Home / 39,545.76-54,573.06-21,640.76

Finding the Fourth Proportional to 39,545.76, 54,573.06 and 21,640.76

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Solution

The fourth proportional to 39,545.76, 54,573.06 and 21,640.76 is: 29,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.76 : 54,573.06 = 21,640.76 : x
  2. Step 2: Convert to fraction form
    39,545.76/54,573.06 = 21,640.76/x
  3. Step 3: Cross multiply
    39,545.76x = 54,573.06 × 21,640.76
  4. Step 4: Simplify right side
    39,545.76x = 1,181,002,493.93
  5. Step 5: Solve for x
    x = 1,181,002,493.93/39,545.76
  6. Step 6: Final answer
    x = 29,864.20

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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.