Home / 21,644.30-32,466.12-17,938.71

Finding the Fourth Proportional to 21,644.30, 32,466.12 and 17,938.71

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Solution

The fourth proportional to 21,644.30, 32,466.12 and 17,938.71 is: 26,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.30 : 32,466.12 = 17,938.71 : x
  2. Step 2: Convert to fraction form
    21,644.30/32,466.12 = 17,938.71/x
  3. Step 3: Cross multiply
    21,644.30x = 32,466.12 × 17,938.71
  4. Step 4: Simplify right side
    21,644.30x = 582,400,059.48
  5. Step 5: Solve for x
    x = 582,400,059.48/21,644.30
  6. Step 6: Final answer
    x = 26,907.78

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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.