Home / 21,264.12-31,897.80-6,474.30

Finding the Fourth Proportional to 21,264.12, 31,897.80 and 6,474.30

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Solution

The fourth proportional to 21,264.12, 31,897.80 and 6,474.30 is: 9,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.12 : 31,897.80 = 6,474.30 : x
  2. Step 2: Convert to fraction form
    21,264.12/31,897.80 = 6,474.30/x
  3. Step 3: Cross multiply
    21,264.12x = 31,897.80 × 6,474.30
  4. Step 4: Simplify right side
    21,264.12x = 206,515,926.54
  5. Step 5: Solve for x
    x = 206,515,926.54/21,264.12
  6. Step 6: Final answer
    x = 9,711.94

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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.