Home / 39,987.12-55,184-22,996.88

Finding the Fourth Proportional to 39,987.12, 55,184 and 22,996.88

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Solution

The fourth proportional to 39,987.12, 55,184 and 22,996.88 is: 31,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.12 : 55,184 = 22,996.88 : x
  2. Step 2: Convert to fraction form
    39,987.12/55,184 = 22,996.88/x
  3. Step 3: Cross multiply
    39,987.12x = 55,184 × 22,996.88
  4. Step 4: Simplify right side
    39,987.12x = 1,269,059,825.92
  5. Step 5: Solve for x
    x = 1,269,059,825.92/39,987.12
  6. Step 6: Final answer
    x = 31,736.71

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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.