Home / 39,965.94-55,154.39-22,061.61

Finding the Fourth Proportional to 39,965.94, 55,154.39 and 22,061.61

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Solution

The fourth proportional to 39,965.94, 55,154.39 and 22,061.61 is: 30,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.94 : 55,154.39 = 22,061.61 : x
  2. Step 2: Convert to fraction form
    39,965.94/55,154.39 = 22,061.61/x
  3. Step 3: Cross multiply
    39,965.94x = 55,154.39 × 22,061.61
  4. Step 4: Simplify right side
    39,965.94x = 1,216,794,531.66
  5. Step 5: Solve for x
    x = 1,216,794,531.66/39,965.94
  6. Step 6: Final answer
    x = 30,445.79

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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.