Home / 36,126.88-49,854.66-20,211.28

Finding the Fourth Proportional to 36,126.88, 49,854.66 and 20,211.28

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Solution

The fourth proportional to 36,126.88, 49,854.66 and 20,211.28 is: 27,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,126.88 : 49,854.66 = 20,211.28 : x
  2. Step 2: Convert to fraction form
    36,126.88/49,854.66 = 20,211.28/x
  3. Step 3: Cross multiply
    36,126.88x = 49,854.66 × 20,211.28
  4. Step 4: Simplify right side
    36,126.88x = 1,007,626,492.56
  5. Step 5: Solve for x
    x = 1,007,626,492.56/36,126.88
  6. Step 6: Final answer
    x = 27,891.32

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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.