Home / 22,918.36-34,348.80-12,387.96

Finding the Fourth Proportional to 22,918.36, 34,348.80 and 12,387.96

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Solution

The fourth proportional to 22,918.36, 34,348.80 and 12,387.96 is: 18,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.36 : 34,348.80 = 12,387.96 : x
  2. Step 2: Convert to fraction form
    22,918.36/34,348.80 = 12,387.96/x
  3. Step 3: Cross multiply
    22,918.36x = 34,348.80 × 12,387.96
  4. Step 4: Simplify right side
    22,918.36x = 425,511,560.45
  5. Step 5: Solve for x
    x = 425,511,560.45/22,918.36
  6. Step 6: Final answer
    x = 18,566.41

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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.