Home / 21,645.30-32,467.61-17,939.71

Finding the Fourth Proportional to 21,645.30, 32,467.61 and 17,939.71

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Solution

The fourth proportional to 21,645.30, 32,467.61 and 17,939.71 is: 26,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.30 : 32,467.61 = 17,939.71 : x
  2. Step 2: Convert to fraction form
    21,645.30/32,467.61 = 17,939.71/x
  3. Step 3: Cross multiply
    21,645.30x = 32,467.61 × 17,939.71
  4. Step 4: Simplify right side
    21,645.30x = 582,459,507.79
  5. Step 5: Solve for x
    x = 582,459,507.79/21,645.30
  6. Step 6: Final answer
    x = 26,909.28

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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.