Home / 39,983.12-55,178.48-22,992.88

Finding the Fourth Proportional to 39,983.12, 55,178.48 and 22,992.88

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Solution

The fourth proportional to 39,983.12, 55,178.48 and 22,992.88 is: 31,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.12 : 55,178.48 = 22,992.88 : x
  2. Step 2: Convert to fraction form
    39,983.12/55,178.48 = 22,992.88/x
  3. Step 3: Cross multiply
    39,983.12x = 55,178.48 × 22,992.88
  4. Step 4: Simplify right side
    39,983.12x = 1,268,712,169.22
  5. Step 5: Solve for x
    x = 1,268,712,169.22/39,983.12
  6. Step 6: Final answer
    x = 31,731.19

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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.