Home / 22,028.74-30,399.16-11,957.20

Finding the Fourth Proportional to 22,028.74, 30,399.16 and 11,957.20

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Solution

The fourth proportional to 22,028.74, 30,399.16 and 11,957.20 is: 16,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,028.74 : 30,399.16 = 11,957.20 : x
  2. Step 2: Convert to fraction form
    22,028.74/30,399.16 = 11,957.20/x
  3. Step 3: Cross multiply
    22,028.74x = 30,399.16 × 11,957.20
  4. Step 4: Simplify right side
    22,028.74x = 363,488,835.95
  5. Step 5: Solve for x
    x = 363,488,835.95/22,028.74
  6. Step 6: Final answer
    x = 16,500.66

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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.