Home / 22,553.82-31,130.52-13,124.20

Finding the Fourth Proportional to 22,553.82, 31,130.52 and 13,124.20

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Solution

The fourth proportional to 22,553.82, 31,130.52 and 13,124.20 is: 18,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,553.82 : 31,130.52 = 13,124.20 : x
  2. Step 2: Convert to fraction form
    22,553.82/31,130.52 = 13,124.20/x
  3. Step 3: Cross multiply
    22,553.82x = 31,130.52 × 13,124.20
  4. Step 4: Simplify right side
    22,553.82x = 408,563,170.58
  5. Step 5: Solve for x
    x = 408,563,170.58/22,553.82
  6. Step 6: Final answer
    x = 18,115.03

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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.