Home / 21,086.20-31,634.34-6,296.32

Finding the Fourth Proportional to 21,086.20, 31,634.34 and 6,296.32

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Solution

The fourth proportional to 21,086.20, 31,634.34 and 6,296.32 is: 9,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.20 : 31,634.34 = 6,296.32 : x
  2. Step 2: Convert to fraction form
    21,086.20/31,634.34 = 6,296.32/x
  3. Step 3: Cross multiply
    21,086.20x = 31,634.34 × 6,296.32
  4. Step 4: Simplify right side
    21,086.20x = 199,179,927.63
  5. Step 5: Solve for x
    x = 199,179,927.63/21,086.20
  6. Step 6: Final answer
    x = 9,445.98

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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.