Home / 21,691.35-32,539.42-6,896.81

Finding the Fourth Proportional to 21,691.35, 32,539.42 and 6,896.81

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Solution

The fourth proportional to 21,691.35, 32,539.42 and 6,896.81 is: 10,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691.35 : 32,539.42 = 6,896.81 : x
  2. Step 2: Convert to fraction form
    21,691.35/32,539.42 = 6,896.81/x
  3. Step 3: Cross multiply
    21,691.35x = 32,539.42 × 6,896.81
  4. Step 4: Simplify right side
    21,691.35x = 224,418,065.39
  5. Step 5: Solve for x
    x = 224,418,065.39/21,691.35
  6. Step 6: Final answer
    x = 10,345.97

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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.