Home / 21,441.28-32,170.24-17,319.68

Finding the Fourth Proportional to 21,441.28, 32,170.24 and 17,319.68

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Solution

The fourth proportional to 21,441.28, 32,170.24 and 17,319.68 is: 25,986.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.28 : 32,170.24 = 17,319.68 : x
  2. Step 2: Convert to fraction form
    21,441.28/32,170.24 = 17,319.68/x
  3. Step 3: Cross multiply
    21,441.28x = 32,170.24 × 17,319.68
  4. Step 4: Simplify right side
    21,441.28x = 557,178,262.32
  5. Step 5: Solve for x
    x = 557,178,262.32/21,441.28
  6. Step 6: Final answer
    x = 25,986.24

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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.