Home / 22,230.72-30,687.84-13,851.36

Finding the Fourth Proportional to 22,230.72, 30,687.84 and 13,851.36

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Solution

The fourth proportional to 22,230.72, 30,687.84 and 13,851.36 is: 19,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,230.72 : 30,687.84 = 13,851.36 : x
  2. Step 2: Convert to fraction form
    22,230.72/30,687.84 = 13,851.36/x
  3. Step 3: Cross multiply
    22,230.72x = 30,687.84 × 13,851.36
  4. Step 4: Simplify right side
    22,230.72x = 425,068,319.46
  5. Step 5: Solve for x
    x = 425,068,319.46/22,230.72
  6. Step 6: Final answer
    x = 19,120.76

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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.