Home / 20,116.98-30,168.45-8,267.36

Finding the Fourth Proportional to 20,116.98, 30,168.45 and 8,267.36

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Solution

The fourth proportional to 20,116.98, 30,168.45 and 8,267.36 is: 12,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.98 : 30,168.45 = 8,267.36 : x
  2. Step 2: Convert to fraction form
    20,116.98/30,168.45 = 8,267.36/x
  3. Step 3: Cross multiply
    20,116.98x = 30,168.45 × 8,267.36
  4. Step 4: Simplify right side
    20,116.98x = 249,413,285.95
  5. Step 5: Solve for x
    x = 249,413,285.95/20,116.98
  6. Step 6: Final answer
    x = 12,398.15

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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.