Home / 39,986.14-60,015.92-20,278.84

Finding the Fourth Proportional to 39,986.14, 60,015.92 and 20,278.84

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Solution

The fourth proportional to 39,986.14, 60,015.92 and 20,278.84 is: 30,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.14 : 60,015.92 = 20,278.84 : x
  2. Step 2: Convert to fraction form
    39,986.14/60,015.92 = 20,278.84/x
  3. Step 3: Cross multiply
    39,986.14x = 60,015.92 × 20,278.84
  4. Step 4: Simplify right side
    39,986.14x = 1,217,053,239.13
  5. Step 5: Solve for x
    x = 1,217,053,239.13/39,986.14
  6. Step 6: Final answer
    x = 30,436.88

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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.