Home / 25,865.80-38,769.90-11,072.20

Finding the Fourth Proportional to 25,865.80, 38,769.90 and 11,072.20

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Solution

The fourth proportional to 25,865.80, 38,769.90 and 11,072.20 is: 16,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.80 : 38,769.90 = 11,072.20 : x
  2. Step 2: Convert to fraction form
    25,865.80/38,769.90 = 11,072.20/x
  3. Step 3: Cross multiply
    25,865.80x = 38,769.90 × 11,072.20
  4. Step 4: Simplify right side
    25,865.80x = 429,268,086.78
  5. Step 5: Solve for x
    x = 429,268,086.78/25,865.80
  6. Step 6: Final answer
    x = 16,595.97

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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.