Home / 21,080.26-31,622.25-5,498.02

Finding the Fourth Proportional to 21,080.26, 31,622.25 and 5,498.02

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Solution

The fourth proportional to 21,080.26, 31,622.25 and 5,498.02 is: 8,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.26 : 31,622.25 = 5,498.02 : x
  2. Step 2: Convert to fraction form
    21,080.26/31,622.25 = 5,498.02/x
  3. Step 3: Cross multiply
    21,080.26x = 31,622.25 × 5,498.02
  4. Step 4: Simplify right side
    21,080.26x = 173,859,762.95
  5. Step 5: Solve for x
    x = 173,859,762.95/21,080.26
  6. Step 6: Final answer
    x = 8,247.52

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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.