Home / 39,987.72-55,183.50-22,082.70

Finding the Fourth Proportional to 39,987.72, 55,183.50 and 22,082.70

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Solution

The fourth proportional to 39,987.72, 55,183.50 and 22,082.70 is: 30,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.72 : 55,183.50 = 22,082.70 : x
  2. Step 2: Convert to fraction form
    39,987.72/55,183.50 = 22,082.70/x
  3. Step 3: Cross multiply
    39,987.72x = 55,183.50 × 22,082.70
  4. Step 4: Simplify right side
    39,987.72x = 1,218,600,675.45
  5. Step 5: Solve for x
    x = 1,218,600,675.45/39,987.72
  6. Step 6: Final answer
    x = 30,474.37

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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.