Home / 39,985.68-55,180.26-22,081.90

Finding the Fourth Proportional to 39,985.68, 55,180.26 and 22,081.90

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Solution

The fourth proportional to 39,985.68, 55,180.26 and 22,081.90 is: 30,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.68 : 55,180.26 = 22,081.90 : x
  2. Step 2: Convert to fraction form
    39,985.68/55,180.26 = 22,081.90/x
  3. Step 3: Cross multiply
    39,985.68x = 55,180.26 × 22,081.90
  4. Step 4: Simplify right side
    39,985.68x = 1,218,484,872.88
  5. Step 5: Solve for x
    x = 1,218,484,872.88/39,985.68
  6. Step 6: Final answer
    x = 30,473.03

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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.