Home / 23,286.56-34,938.96-13,420.46

Finding the Fourth Proportional to 23,286.56, 34,938.96 and 13,420.46

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Solution

The fourth proportional to 23,286.56, 34,938.96 and 13,420.46 is: 20,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,286.56 : 34,938.96 = 13,420.46 : x
  2. Step 2: Convert to fraction form
    23,286.56/34,938.96 = 13,420.46/x
  3. Step 3: Cross multiply
    23,286.56x = 34,938.96 × 13,420.46
  4. Step 4: Simplify right side
    23,286.56x = 468,896,915.12
  5. Step 5: Solve for x
    x = 468,896,915.12/23,286.56
  6. Step 6: Final answer
    x = 20,135.95

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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.