Home / 25,786.80-38,685.60-10,204.56

Finding the Fourth Proportional to 25,786.80, 38,685.60 and 10,204.56

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Solution

The fourth proportional to 25,786.80, 38,685.60 and 10,204.56 is: 15,308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.80 : 38,685.60 = 10,204.56 : x
  2. Step 2: Convert to fraction form
    25,786.80/38,685.60 = 10,204.56/x
  3. Step 3: Cross multiply
    25,786.80x = 38,685.60 × 10,204.56
  4. Step 4: Simplify right side
    25,786.80x = 394,769,526.34
  5. Step 5: Solve for x
    x = 394,769,526.34/25,786.80
  6. Step 6: Final answer
    x = 15,308.98

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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.