Home / 20,824.74-31,248.99-7,675.38

Finding the Fourth Proportional to 20,824.74, 31,248.99 and 7,675.38

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Solution

The fourth proportional to 20,824.74, 31,248.99 and 7,675.38 is: 11,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.74 : 31,248.99 = 7,675.38 : x
  2. Step 2: Convert to fraction form
    20,824.74/31,248.99 = 7,675.38/x
  3. Step 3: Cross multiply
    20,824.74x = 31,248.99 × 7,675.38
  4. Step 4: Simplify right side
    20,824.74x = 239,847,872.87
  5. Step 5: Solve for x
    x = 239,847,872.87/20,824.74
  6. Step 6: Final answer
    x = 11,517.45

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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.