Home / 21,372.48-29,508.60-13,837.04

Finding the Fourth Proportional to 21,372.48, 29,508.60 and 13,837.04

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Solution

The fourth proportional to 21,372.48, 29,508.60 and 13,837.04 is: 19,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.48 : 29,508.60 = 13,837.04 : x
  2. Step 2: Convert to fraction form
    21,372.48/29,508.60 = 13,837.04/x
  3. Step 3: Cross multiply
    21,372.48x = 29,508.60 × 13,837.04
  4. Step 4: Simplify right side
    21,372.48x = 408,311,678.54
  5. Step 5: Solve for x
    x = 408,311,678.54/21,372.48
  6. Step 6: Final answer
    x = 19,104.55

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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.