Home / 20,633.47-28,474.23-11,201.83

Finding the Fourth Proportional to 20,633.47, 28,474.23 and 11,201.83

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Solution

The fourth proportional to 20,633.47, 28,474.23 and 11,201.83 is: 15,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.47 : 28,474.23 = 11,201.83 : x
  2. Step 2: Convert to fraction form
    20,633.47/28,474.23 = 11,201.83/x
  3. Step 3: Cross multiply
    20,633.47x = 28,474.23 × 11,201.83
  4. Step 4: Simplify right side
    20,633.47x = 318,963,454.66
  5. Step 5: Solve for x
    x = 318,963,454.66/20,633.47
  6. Step 6: Final answer
    x = 15,458.55

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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.