Home / 39,989.66-60,021.38-20,282.05

Finding the Fourth Proportional to 39,989.66, 60,021.38 and 20,282.05

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Solution

The fourth proportional to 39,989.66, 60,021.38 and 20,282.05 is: 30,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.66 : 60,021.38 = 20,282.05 : x
  2. Step 2: Convert to fraction form
    39,989.66/60,021.38 = 20,282.05/x
  3. Step 3: Cross multiply
    39,989.66x = 60,021.38 × 20,282.05
  4. Step 4: Simplify right side
    39,989.66x = 1,217,356,755.96
  5. Step 5: Solve for x
    x = 1,217,356,755.96/39,989.66
  6. Step 6: Final answer
    x = 30,441.79

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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.