Home / 20,975.53-31,474.29-8,496.88

Finding the Fourth Proportional to 20,975.53, 31,474.29 and 8,496.88

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Solution

The fourth proportional to 20,975.53, 31,474.29 and 8,496.88 is: 12,749.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.53 : 31,474.29 = 8,496.88 : x
  2. Step 2: Convert to fraction form
    20,975.53/31,474.29 = 8,496.88/x
  3. Step 3: Cross multiply
    20,975.53x = 31,474.29 × 8,496.88
  4. Step 4: Simplify right side
    20,975.53x = 267,433,265.22
  5. Step 5: Solve for x
    x = 267,433,265.22/20,975.53
  6. Step 6: Final answer
    x = 12,749.77

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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.