Home / 39,844.76-54,986.17-21,941.43

Finding the Fourth Proportional to 39,844.76, 54,986.17 and 21,941.43

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Solution

The fourth proportional to 39,844.76, 54,986.17 and 21,941.43 is: 30,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.76 : 54,986.17 = 21,941.43 : x
  2. Step 2: Convert to fraction form
    39,844.76/54,986.17 = 21,941.43/x
  3. Step 3: Cross multiply
    39,844.76x = 54,986.17 × 21,941.43
  4. Step 4: Simplify right side
    39,844.76x = 1,206,474,925.09
  5. Step 5: Solve for x
    x = 1,206,474,925.09/39,844.76
  6. Step 6: Final answer
    x = 30,279.39

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Double scale
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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.