Home / 36,191.21-49,943.79-20,275.31

Finding the Fourth Proportional to 36,191.21, 49,943.79 and 20,275.31

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Solution

The fourth proportional to 36,191.21, 49,943.79 and 20,275.31 is: 27,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,191.21 : 49,943.79 = 20,275.31 : x
  2. Step 2: Convert to fraction form
    36,191.21/49,943.79 = 20,275.31/x
  3. Step 3: Cross multiply
    36,191.21x = 49,943.79 × 20,275.31
  4. Step 4: Simplify right side
    36,191.21x = 1,012,625,949.68
  5. Step 5: Solve for x
    x = 1,012,625,949.68/36,191.21
  6. Step 6: Final answer
    x = 27,979.89

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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.