Home / 22,486.78-31,034.49-13,055.34

Finding the Fourth Proportional to 22,486.78, 31,034.49 and 13,055.34

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Solution

The fourth proportional to 22,486.78, 31,034.49 and 13,055.34 is: 18,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.78 : 31,034.49 = 13,055.34 : x
  2. Step 2: Convert to fraction form
    22,486.78/31,034.49 = 13,055.34/x
  3. Step 3: Cross multiply
    22,486.78x = 31,034.49 × 13,055.34
  4. Step 4: Simplify right side
    22,486.78x = 405,165,959.53
  5. Step 5: Solve for x
    x = 405,165,959.53/22,486.78
  6. Step 6: Final answer
    x = 18,017.96

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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.