Home / 21,188.56-31,770.48-6,393.04

Finding the Fourth Proportional to 21,188.56, 31,770.48 and 6,393.04

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Solution

The fourth proportional to 21,188.56, 31,770.48 and 6,393.04 is: 9,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.56 : 31,770.48 = 6,393.04 : x
  2. Step 2: Convert to fraction form
    21,188.56/31,770.48 = 6,393.04/x
  3. Step 3: Cross multiply
    21,188.56x = 31,770.48 × 6,393.04
  4. Step 4: Simplify right side
    21,188.56x = 203,109,949.46
  5. Step 5: Solve for x
    x = 203,109,949.46/21,188.56
  6. Step 6: Final answer
    x = 9,585.83

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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.