Home / 21,164.48-29,200.66-12,211.82

Finding the Fourth Proportional to 21,164.48, 29,200.66 and 12,211.82

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Solution

The fourth proportional to 21,164.48, 29,200.66 and 12,211.82 is: 16,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.48 : 29,200.66 = 12,211.82 : x
  2. Step 2: Convert to fraction form
    21,164.48/29,200.66 = 12,211.82/x
  3. Step 3: Cross multiply
    21,164.48x = 29,200.66 × 12,211.82
  4. Step 4: Simplify right side
    21,164.48x = 356,593,027.27
  5. Step 5: Solve for x
    x = 356,593,027.27/21,164.48
  6. Step 6: Final answer
    x = 16,848.66

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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.