Home / 23,129.50-31,921.54-13,058.36

Finding the Fourth Proportional to 23,129.50, 31,921.54 and 13,058.36

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Solution

The fourth proportional to 23,129.50, 31,921.54 and 13,058.36 is: 18,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.50 : 31,921.54 = 13,058.36 : x
  2. Step 2: Convert to fraction form
    23,129.50/31,921.54 = 13,058.36/x
  3. Step 3: Cross multiply
    23,129.50x = 31,921.54 × 13,058.36
  4. Step 4: Simplify right side
    23,129.50x = 416,843,141.54
  5. Step 5: Solve for x
    x = 416,843,141.54/23,129.50
  6. Step 6: Final answer
    x = 18,022.14

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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.