Home / 21,440.27-32,157.57-13,519.28

Finding the Fourth Proportional to 21,440.27, 32,157.57 and 13,519.28

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Solution

The fourth proportional to 21,440.27, 32,157.57 and 13,519.28 is: 20,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.27 : 32,157.57 = 13,519.28 : x
  2. Step 2: Convert to fraction form
    21,440.27/32,157.57 = 13,519.28/x
  3. Step 3: Cross multiply
    21,440.27x = 32,157.57 × 13,519.28
  4. Step 4: Simplify right side
    21,440.27x = 434,747,192.95
  5. Step 5: Solve for x
    x = 434,747,192.95/21,440.27
  6. Step 6: Final answer
    x = 20,277.13

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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.