Home / 39,987.63-55,181.39-22,082.31

Finding the Fourth Proportional to 39,987.63, 55,181.39 and 22,082.31

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Solution

The fourth proportional to 39,987.63, 55,181.39 and 22,082.31 is: 30,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.63 : 55,181.39 = 22,082.31 : x
  2. Step 2: Convert to fraction form
    39,987.63/55,181.39 = 22,082.31/x
  3. Step 3: Cross multiply
    39,987.63x = 55,181.39 × 22,082.31
  4. Step 4: Simplify right side
    39,987.63x = 1,218,532,449.80
  5. Step 5: Solve for x
    x = 1,218,532,449.80/39,987.63
  6. Step 6: Final answer
    x = 30,472.73

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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.