Home / 39,569.97-54,604.48-21,661.55

Finding the Fourth Proportional to 39,569.97, 54,604.48 and 21,661.55

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Solution

The fourth proportional to 39,569.97, 54,604.48 and 21,661.55 is: 29,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,569.97 : 54,604.48 = 21,661.55 : x
  2. Step 2: Convert to fraction form
    39,569.97/54,604.48 = 21,661.55/x
  3. Step 3: Cross multiply
    39,569.97x = 54,604.48 × 21,661.55
  4. Step 4: Simplify right side
    39,569.97x = 1,182,817,673.74
  5. Step 5: Solve for x
    x = 1,182,817,673.74/39,569.97
  6. Step 6: Final answer
    x = 29,891.80

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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.