Home / 20,844.20-31,266.30-20,714.60

Finding the Fourth Proportional to 20,844.20, 31,266.30 and 20,714.60

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Solution

The fourth proportional to 20,844.20, 31,266.30 and 20,714.60 is: 31,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.20 : 31,266.30 = 20,714.60 : x
  2. Step 2: Convert to fraction form
    20,844.20/31,266.30 = 20,714.60/x
  3. Step 3: Cross multiply
    20,844.20x = 31,266.30 × 20,714.60
  4. Step 4: Simplify right side
    20,844.20x = 647,668,897.98
  5. Step 5: Solve for x
    x = 647,668,897.98/20,844.20
  6. Step 6: Final answer
    x = 31,071.90

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1.5x scale

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.