Home / 19,769.90-29,654.85-8,080.39

Finding the Fourth Proportional to 19,769.90, 29,654.85 and 8,080.39

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Solution

The fourth proportional to 19,769.90, 29,654.85 and 8,080.39 is: 12,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.90 : 29,654.85 = 8,080.39 : x
  2. Step 2: Convert to fraction form
    19,769.90/29,654.85 = 8,080.39/x
  3. Step 3: Cross multiply
    19,769.90x = 29,654.85 × 8,080.39
  4. Step 4: Simplify right side
    19,769.90x = 239,622,605.12
  5. Step 5: Solve for x
    x = 239,622,605.12/19,769.90
  6. Step 6: Final answer
    x = 12,120.58

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1.5x scale

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.