Home / 22,560.39-31,134.41-13,001.72

Finding the Fourth Proportional to 22,560.39, 31,134.41 and 13,001.72

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Solution

The fourth proportional to 22,560.39, 31,134.41 and 13,001.72 is: 17,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.39 : 31,134.41 = 13,001.72 : x
  2. Step 2: Convert to fraction form
    22,560.39/31,134.41 = 13,001.72/x
  3. Step 3: Cross multiply
    22,560.39x = 31,134.41 × 13,001.72
  4. Step 4: Simplify right side
    22,560.39x = 404,800,709.26
  5. Step 5: Solve for x
    x = 404,800,709.26/22,560.39
  6. Step 6: Final answer
    x = 17,942.98

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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.