Home / 20,310.85-30,453.98-13,282.38

Finding the Fourth Proportional to 20,310.85, 30,453.98 and 13,282.38

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Solution

The fourth proportional to 20,310.85, 30,453.98 and 13,282.38 is: 19,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.85 : 30,453.98 = 13,282.38 : x
  2. Step 2: Convert to fraction form
    20,310.85/30,453.98 = 13,282.38/x
  3. Step 3: Cross multiply
    20,310.85x = 30,453.98 × 13,282.38
  4. Step 4: Simplify right side
    20,310.85x = 404,501,268.46
  5. Step 5: Solve for x
    x = 404,501,268.46/20,310.85
  6. Step 6: Final answer
    x = 19,915.53

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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.