Home / 21,915.78-32,902.83-11,534.82

Finding the Fourth Proportional to 21,915.78, 32,902.83 and 11,534.82

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Solution

The fourth proportional to 21,915.78, 32,902.83 and 11,534.82 is: 17,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.78 : 32,902.83 = 11,534.82 : x
  2. Step 2: Convert to fraction form
    21,915.78/32,902.83 = 11,534.82/x
  3. Step 3: Cross multiply
    21,915.78x = 32,902.83 × 11,534.82
  4. Step 4: Simplify right side
    21,915.78x = 379,528,221.54
  5. Step 5: Solve for x
    x = 379,528,221.54/21,915.78
  6. Step 6: Final answer
    x = 17,317.58

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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.