Home / 39,841.05-54,981.14-21,937.28

Finding the Fourth Proportional to 39,841.05, 54,981.14 and 21,937.28

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Solution

The fourth proportional to 39,841.05, 54,981.14 and 21,937.28 is: 30,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,841.05 : 54,981.14 = 21,937.28 : x
  2. Step 2: Convert to fraction form
    39,841.05/54,981.14 = 21,937.28/x
  3. Step 3: Cross multiply
    39,841.05x = 54,981.14 × 21,937.28
  4. Step 4: Simplify right side
    39,841.05x = 1,206,136,278.31
  5. Step 5: Solve for x
    x = 1,206,136,278.31/39,841.05
  6. Step 6: Final answer
    x = 30,273.71

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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.