Home / 22,134.57-30,534.89-13,179.21

Finding the Fourth Proportional to 22,134.57, 30,534.89 and 13,179.21

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Solution

The fourth proportional to 22,134.57, 30,534.89 and 13,179.21 is: 18,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,134.57 : 30,534.89 = 13,179.21 : x
  2. Step 2: Convert to fraction form
    22,134.57/30,534.89 = 13,179.21/x
  3. Step 3: Cross multiply
    22,134.57x = 30,534.89 × 13,179.21
  4. Step 4: Simplify right side
    22,134.57x = 402,425,661.74
  5. Step 5: Solve for x
    x = 402,425,661.74/22,134.57
  6. Step 6: Final answer
    x = 18,180.87

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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.