Home / 21,441.20-32,162.42-18,301.40

Finding the Fourth Proportional to 21,441.20, 32,162.42 and 18,301.40

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Solution

The fourth proportional to 21,441.20, 32,162.42 and 18,301.40 is: 27,452.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.20 : 32,162.42 = 18,301.40 : x
  2. Step 2: Convert to fraction form
    21,441.20/32,162.42 = 18,301.40/x
  3. Step 3: Cross multiply
    21,441.20x = 32,162.42 × 18,301.40
  4. Step 4: Simplify right side
    21,441.20x = 588,617,318.94
  5. Step 5: Solve for x
    x = 588,617,318.94/21,441.20
  6. Step 6: Final answer
    x = 27,452.64

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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.