Home / 20,552.31-28,320.33-14,180.85

Finding the Fourth Proportional to 20,552.31, 28,320.33 and 14,180.85

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Solution

The fourth proportional to 20,552.31, 28,320.33 and 14,180.85 is: 19,540.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.31 : 28,320.33 = 14,180.85 : x
  2. Step 2: Convert to fraction form
    20,552.31/28,320.33 = 14,180.85/x
  3. Step 3: Cross multiply
    20,552.31x = 28,320.33 × 14,180.85
  4. Step 4: Simplify right side
    20,552.31x = 401,606,351.68
  5. Step 5: Solve for x
    x = 401,606,351.68/20,552.31
  6. Step 6: Final answer
    x = 19,540.69

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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.