Home / 21,911.70-32,867.55-13,617.30

Finding the Fourth Proportional to 21,911.70, 32,867.55 and 13,617.30

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Solution

The fourth proportional to 21,911.70, 32,867.55 and 13,617.30 is: 20,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.70 : 32,867.55 = 13,617.30 : x
  2. Step 2: Convert to fraction form
    21,911.70/32,867.55 = 13,617.30/x
  3. Step 3: Cross multiply
    21,911.70x = 32,867.55 × 13,617.30
  4. Step 4: Simplify right side
    21,911.70x = 447,567,288.62
  5. Step 5: Solve for x
    x = 447,567,288.62/21,911.70
  6. Step 6: Final answer
    x = 20,425.95

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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.