Home / 21,791.07-32,620.59-19,711.98

Finding the Fourth Proportional to 21,791.07, 32,620.59 and 19,711.98

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Solution

The fourth proportional to 21,791.07, 32,620.59 and 19,711.98 is: 29,508.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791.07 : 32,620.59 = 19,711.98 : x
  2. Step 2: Convert to fraction form
    21,791.07/32,620.59 = 19,711.98/x
  3. Step 3: Cross multiply
    21,791.07x = 32,620.59 × 19,711.98
  4. Step 4: Simplify right side
    21,791.07x = 643,016,417.67
  5. Step 5: Solve for x
    x = 643,016,417.67/21,791.07
  6. Step 6: Final answer
    x = 29,508.25

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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.