Home / 21,487.60-32,231.40-6,697.71

Finding the Fourth Proportional to 21,487.60, 32,231.40 and 6,697.71

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Solution

The fourth proportional to 21,487.60, 32,231.40 and 6,697.71 is: 10,046.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.60 : 32,231.40 = 6,697.71 : x
  2. Step 2: Convert to fraction form
    21,487.60/32,231.40 = 6,697.71/x
  3. Step 3: Cross multiply
    21,487.60x = 32,231.40 × 6,697.71
  4. Step 4: Simplify right side
    21,487.60x = 215,876,570.09
  5. Step 5: Solve for x
    x = 215,876,570.09/21,487.60
  6. Step 6: Final answer
    x = 10,046.57

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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.