Home / 21,568.40-32,357.40-16,902.80

Finding the Fourth Proportional to 21,568.40, 32,357.40 and 16,902.80

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Solution

The fourth proportional to 21,568.40, 32,357.40 and 16,902.80 is: 25,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.40 : 32,357.40 = 16,902.80 : x
  2. Step 2: Convert to fraction form
    21,568.40/32,357.40 = 16,902.80/x
  3. Step 3: Cross multiply
    21,568.40x = 32,357.40 × 16,902.80
  4. Step 4: Simplify right side
    21,568.40x = 546,930,660.72
  5. Step 5: Solve for x
    x = 546,930,660.72/21,568.40
  6. Step 6: Final answer
    x = 25,357.96

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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.