Home / 39,990-55,186.20-23,224.08

Finding the Fourth Proportional to 39,990, 55,186.20 and 23,224.08

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Solution

The fourth proportional to 39,990, 55,186.20 and 23,224.08 is: 32,049.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990 : 55,186.20 = 23,224.08 : x
  2. Step 2: Convert to fraction form
    39,990/55,186.20 = 23,224.08/x
  3. Step 3: Cross multiply
    39,990x = 55,186.20 × 23,224.08
  4. Step 4: Simplify right side
    39,990x = 1,281,648,723.70
  5. Step 5: Solve for x
    x = 1,281,648,723.70/39,990
  6. Step 6: Final answer
    x = 32,049.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.