Home / 21,342.54-29,452.71-11,910.90

Finding the Fourth Proportional to 21,342.54, 29,452.71 and 11,910.90

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Solution

The fourth proportional to 21,342.54, 29,452.71 and 11,910.90 is: 16,437.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.54 : 29,452.71 = 11,910.90 : x
  2. Step 2: Convert to fraction form
    21,342.54/29,452.71 = 11,910.90/x
  3. Step 3: Cross multiply
    21,342.54x = 29,452.71 × 11,910.90
  4. Step 4: Simplify right side
    21,342.54x = 350,808,283.54
  5. Step 5: Solve for x
    x = 350,808,283.54/21,342.54
  6. Step 6: Final answer
    x = 16,437.04

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1.5x scale

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.