Home / 22,918.71-34,386.79-11,818.31

Finding the Fourth Proportional to 22,918.71, 34,386.79 and 11,818.31

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Solution

The fourth proportional to 22,918.71, 34,386.79 and 11,818.31 is: 17,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.71 : 34,386.79 = 11,818.31 : x
  2. Step 2: Convert to fraction form
    22,918.71/34,386.79 = 11,818.31/x
  3. Step 3: Cross multiply
    22,918.71x = 34,386.79 × 11,818.31
  4. Step 4: Simplify right side
    22,918.71x = 406,393,744.12
  5. Step 5: Solve for x
    x = 406,393,744.12/22,918.71
  6. Step 6: Final answer
    x = 17,731.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.