Home / 21,494.23-29,671.23-20,149.18

Finding the Fourth Proportional to 21,494.23, 29,671.23 and 20,149.18

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Solution

The fourth proportional to 21,494.23, 29,671.23 and 20,149.18 is: 27,814.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,494.23 : 29,671.23 = 20,149.18 : x
  2. Step 2: Convert to fraction form
    21,494.23/29,671.23 = 20,149.18/x
  3. Step 3: Cross multiply
    21,494.23x = 29,671.23 × 20,149.18
  4. Step 4: Simplify right side
    21,494.23x = 597,850,954.09
  5. Step 5: Solve for x
    x = 597,850,954.09/21,494.23
  6. Step 6: Final answer
    x = 27,814.49

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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.