Home / 22,991.72-31,743.09-15,047.37

Finding the Fourth Proportional to 22,991.72, 31,743.09 and 15,047.37

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Solution

The fourth proportional to 22,991.72, 31,743.09 and 15,047.37 is: 20,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.72 : 31,743.09 = 15,047.37 : x
  2. Step 2: Convert to fraction form
    22,991.72/31,743.09 = 15,047.37/x
  3. Step 3: Cross multiply
    22,991.72x = 31,743.09 × 15,047.37
  4. Step 4: Simplify right side
    22,991.72x = 477,650,020.17
  5. Step 5: Solve for x
    x = 477,650,020.17/22,991.72
  6. Step 6: Final answer
    x = 20,774.88

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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.