Home / 21,986.64-30,348.27-17,540.96

Finding the Fourth Proportional to 21,986.64, 30,348.27 and 17,540.96

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Solution

The fourth proportional to 21,986.64, 30,348.27 and 17,540.96 is: 24,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.64 : 30,348.27 = 17,540.96 : x
  2. Step 2: Convert to fraction form
    21,986.64/30,348.27 = 17,540.96/x
  3. Step 3: Cross multiply
    21,986.64x = 30,348.27 × 17,540.96
  4. Step 4: Simplify right side
    21,986.64x = 532,337,638.40
  5. Step 5: Solve for x
    x = 532,337,638.40/21,986.64
  6. Step 6: Final answer
    x = 24,211.87

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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.