Home / 39,985.22-55,180.05-22,080.20

Finding the Fourth Proportional to 39,985.22, 55,180.05 and 22,080.20

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Solution

The fourth proportional to 39,985.22, 55,180.05 and 22,080.20 is: 30,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.22 : 55,180.05 = 22,080.20 : x
  2. Step 2: Convert to fraction form
    39,985.22/55,180.05 = 22,080.20/x
  3. Step 3: Cross multiply
    39,985.22x = 55,180.05 × 22,080.20
  4. Step 4: Simplify right side
    39,985.22x = 1,218,386,540.01
  5. Step 5: Solve for x
    x = 1,218,386,540.01/39,985.22
  6. Step 6: Final answer
    x = 30,470.92

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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.