Home / 21,212.50-29,273.26-11,781.14

Finding the Fourth Proportional to 21,212.50, 29,273.26 and 11,781.14

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Solution

The fourth proportional to 21,212.50, 29,273.26 and 11,781.14 is: 16,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.50 : 29,273.26 = 11,781.14 : x
  2. Step 2: Convert to fraction form
    21,212.50/29,273.26 = 11,781.14/x
  3. Step 3: Cross multiply
    21,212.50x = 29,273.26 × 11,781.14
  4. Step 4: Simplify right side
    21,212.50x = 344,872,374.32
  5. Step 5: Solve for x
    x = 344,872,374.32/21,212.50
  6. Step 6: Final answer
    x = 16,257.98

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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.