Home / 21,292.92-29,384.34-11,861.52

Finding the Fourth Proportional to 21,292.92, 29,384.34 and 11,861.52

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Solution

The fourth proportional to 21,292.92, 29,384.34 and 11,861.52 is: 16,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.92 : 29,384.34 = 11,861.52 : x
  2. Step 2: Convert to fraction form
    21,292.92/29,384.34 = 11,861.52/x
  3. Step 3: Cross multiply
    21,292.92x = 29,384.34 × 11,861.52
  4. Step 4: Simplify right side
    21,292.92x = 348,542,936.60
  5. Step 5: Solve for x
    x = 348,542,936.60/21,292.92
  6. Step 6: Final answer
    x = 16,368.96

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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.