Home / 21,867.30-32,789.07-10,170.18

Finding the Fourth Proportional to 21,867.30, 32,789.07 and 10,170.18

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Solution

The fourth proportional to 21,867.30, 32,789.07 and 10,170.18 is: 15,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.30 : 32,789.07 = 10,170.18 : x
  2. Step 2: Convert to fraction form
    21,867.30/32,789.07 = 10,170.18/x
  3. Step 3: Cross multiply
    21,867.30x = 32,789.07 × 10,170.18
  4. Step 4: Simplify right side
    21,867.30x = 333,470,743.93
  5. Step 5: Solve for x
    x = 333,470,743.93/21,867.30
  6. Step 6: Final answer
    x = 15,249.74

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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.