Home / 21,824.64-32,687.64-17,888.04

Finding the Fourth Proportional to 21,824.64, 32,687.64 and 17,888.04

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Solution

The fourth proportional to 21,824.64, 32,687.64 and 17,888.04 is: 26,791.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.64 : 32,687.64 = 17,888.04 : x
  2. Step 2: Convert to fraction form
    21,824.64/32,687.64 = 17,888.04/x
  3. Step 3: Cross multiply
    21,824.64x = 32,687.64 × 17,888.04
  4. Step 4: Simplify right side
    21,824.64x = 584,717,811.83
  5. Step 5: Solve for x
    x = 584,717,811.83/21,824.64
  6. Step 6: Final answer
    x = 26,791.64

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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.