Home / 29,127.98-40,180.38-20,180.72

Finding the Fourth Proportional to 29,127.98, 40,180.38 and 20,180.72

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Solution

The fourth proportional to 29,127.98, 40,180.38 and 20,180.72 is: 27,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,127.98 : 40,180.38 = 20,180.72 : x
  2. Step 2: Convert to fraction form
    29,127.98/40,180.38 = 20,180.72/x
  3. Step 3: Cross multiply
    29,127.98x = 40,180.38 × 20,180.72
  4. Step 4: Simplify right side
    29,127.98x = 810,868,998.27
  5. Step 5: Solve for x
    x = 810,868,998.27/29,127.98
  6. Step 6: Final answer
    x = 27,838.15

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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.