Home / 21,640.24-32,397.09-19,565.02

Finding the Fourth Proportional to 21,640.24, 32,397.09 and 19,565.02

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Solution

The fourth proportional to 21,640.24, 32,397.09 and 19,565.02 is: 29,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.24 : 32,397.09 = 19,565.02 : x
  2. Step 2: Convert to fraction form
    21,640.24/32,397.09 = 19,565.02/x
  3. Step 3: Cross multiply
    21,640.24x = 32,397.09 × 19,565.02
  4. Step 4: Simplify right side
    21,640.24x = 633,849,713.79
  5. Step 5: Solve for x
    x = 633,849,713.79/21,640.24
  6. Step 6: Final answer
    x = 29,290.33

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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.