Home / 36,195.49-49,951.15-20,279.40

Finding the Fourth Proportional to 36,195.49, 49,951.15 and 20,279.40

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Solution

The fourth proportional to 36,195.49, 49,951.15 and 20,279.40 is: 27,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,195.49 : 49,951.15 = 20,279.40 : x
  2. Step 2: Convert to fraction form
    36,195.49/49,951.15 = 20,279.40/x
  3. Step 3: Cross multiply
    36,195.49x = 49,951.15 × 20,279.40
  4. Step 4: Simplify right side
    36,195.49x = 1,012,979,113.29
  5. Step 5: Solve for x
    x = 1,012,979,113.29/36,195.49
  6. Step 6: Final answer
    x = 27,986.33

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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.