Home / 21,912.60-32,859.20-13,592.28

Finding the Fourth Proportional to 21,912.60, 32,859.20 and 13,592.28

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Solution

The fourth proportional to 21,912.60, 32,859.20 and 13,592.28 is: 20,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.60 : 32,859.20 = 13,592.28 : x
  2. Step 2: Convert to fraction form
    21,912.60/32,859.20 = 13,592.28/x
  3. Step 3: Cross multiply
    21,912.60x = 32,859.20 × 13,592.28
  4. Step 4: Simplify right side
    21,912.60x = 446,631,446.98
  5. Step 5: Solve for x
    x = 446,631,446.98/21,912.60
  6. Step 6: Final answer
    x = 20,382.40

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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.