Home / 21,589.92-32,311.44-13,265.55

Finding the Fourth Proportional to 21,589.92, 32,311.44 and 13,265.55

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Solution

The fourth proportional to 21,589.92, 32,311.44 and 13,265.55 is: 19,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.92 : 32,311.44 = 13,265.55 : x
  2. Step 2: Convert to fraction form
    21,589.92/32,311.44 = 13,265.55/x
  3. Step 3: Cross multiply
    21,589.92x = 32,311.44 × 13,265.55
  4. Step 4: Simplify right side
    21,589.92x = 428,629,022.89
  5. Step 5: Solve for x
    x = 428,629,022.89/21,589.92
  6. Step 6: Final answer
    x = 19,853.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.