Home / 39,822.80-59,771.12-20,115.23

Finding the Fourth Proportional to 39,822.80, 59,771.12 and 20,115.23

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Solution

The fourth proportional to 39,822.80, 59,771.12 and 20,115.23 is: 30,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.80 : 59,771.12 = 20,115.23 : x
  2. Step 2: Convert to fraction form
    39,822.80/59,771.12 = 20,115.23/x
  3. Step 3: Cross multiply
    39,822.80x = 59,771.12 × 20,115.23
  4. Step 4: Simplify right side
    39,822.80x = 1,202,309,426.73
  5. Step 5: Solve for x
    x = 1,202,309,426.73/39,822.80
  6. Step 6: Final answer
    x = 30,191.49

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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.