Home / 22,557.24-31,126.25-13,000.22

Finding the Fourth Proportional to 22,557.24, 31,126.25 and 13,000.22

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Solution

The fourth proportional to 22,557.24, 31,126.25 and 13,000.22 is: 17,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.24 : 31,126.25 = 13,000.22 : x
  2. Step 2: Convert to fraction form
    22,557.24/31,126.25 = 13,000.22/x
  3. Step 3: Cross multiply
    22,557.24x = 31,126.25 × 13,000.22
  4. Step 4: Simplify right side
    22,557.24x = 404,648,011.03
  5. Step 5: Solve for x
    x = 404,648,011.03/22,557.24
  6. Step 6: Final answer
    x = 17,938.72

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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.