Home / 21,079.26-31,620.75-5,497.02

Finding the Fourth Proportional to 21,079.26, 31,620.75 and 5,497.02

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Solution

The fourth proportional to 21,079.26, 31,620.75 and 5,497.02 is: 8,246.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.26 : 31,620.75 = 5,497.02 : x
  2. Step 2: Convert to fraction form
    21,079.26/31,620.75 = 5,497.02/x
  3. Step 3: Cross multiply
    21,079.26x = 31,620.75 × 5,497.02
  4. Step 4: Simplify right side
    21,079.26x = 173,819,895.17
  5. Step 5: Solve for x
    x = 173,819,895.17/21,079.26
  6. Step 6: Final answer
    x = 8,246.02

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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.