Home / 39,748.88-54,853.76-21,844.18

Finding the Fourth Proportional to 39,748.88, 54,853.76 and 21,844.18

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Solution

The fourth proportional to 39,748.88, 54,853.76 and 21,844.18 is: 30,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,748.88 : 54,853.76 = 21,844.18 : x
  2. Step 2: Convert to fraction form
    39,748.88/54,853.76 = 21,844.18/x
  3. Step 3: Cross multiply
    39,748.88x = 54,853.76 × 21,844.18
  4. Step 4: Simplify right side
    39,748.88x = 1,198,235,407.42
  5. Step 5: Solve for x
    x = 1,198,235,407.42/39,748.88
  6. Step 6: Final answer
    x = 30,145.14

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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.