Home / 29,126.48-40,178.31-20,179.22

Finding the Fourth Proportional to 29,126.48, 40,178.31 and 20,179.22

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Solution

The fourth proportional to 29,126.48, 40,178.31 and 20,179.22 is: 27,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,126.48 : 40,178.31 = 20,179.22 : x
  2. Step 2: Convert to fraction form
    29,126.48/40,178.31 = 20,179.22/x
  3. Step 3: Cross multiply
    29,126.48x = 40,178.31 × 20,179.22
  4. Step 4: Simplify right side
    29,126.48x = 810,766,956.72
  5. Step 5: Solve for x
    x = 810,766,956.72/29,126.48
  6. Step 6: Final answer
    x = 27,836.08

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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.