Home / 25,769.80-38,660.76-7,999.55

Finding the Fourth Proportional to 25,769.80, 38,660.76 and 7,999.55

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Solution

The fourth proportional to 25,769.80, 38,660.76 and 7,999.55 is: 12,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,769.80 : 38,660.76 = 7,999.55 : x
  2. Step 2: Convert to fraction form
    25,769.80/38,660.76 = 7,999.55/x
  3. Step 3: Cross multiply
    25,769.80x = 38,660.76 × 7,999.55
  4. Step 4: Simplify right side
    25,769.80x = 309,268,674.87
  5. Step 5: Solve for x
    x = 309,268,674.87/25,769.80
  6. Step 6: Final answer
    x = 12,001.21

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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.