Home / 21,650.14-29,863.02-15,286.06

Finding the Fourth Proportional to 21,650.14, 29,863.02 and 15,286.06

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Solution

The fourth proportional to 21,650.14, 29,863.02 and 15,286.06 is: 21,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.14 : 29,863.02 = 15,286.06 : x
  2. Step 2: Convert to fraction form
    21,650.14/29,863.02 = 15,286.06/x
  3. Step 3: Cross multiply
    21,650.14x = 29,863.02 × 15,286.06
  4. Step 4: Simplify right side
    21,650.14x = 456,487,915.50
  5. Step 5: Solve for x
    x = 456,487,915.50/21,650.14
  6. Step 6: Final answer
    x = 21,084.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.