Home / 21,293.32-29,384.49-11,861.95

Finding the Fourth Proportional to 21,293.32, 29,384.49 and 11,861.95

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Solution

The fourth proportional to 21,293.32, 29,384.49 and 11,861.95 is: 16,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.32 : 29,384.49 = 11,861.95 : x
  2. Step 2: Convert to fraction form
    21,293.32/29,384.49 = 11,861.95/x
  3. Step 3: Cross multiply
    21,293.32x = 29,384.49 × 11,861.95
  4. Step 4: Simplify right side
    21,293.32x = 348,557,351.16
  5. Step 5: Solve for x
    x = 348,557,351.16/21,293.32
  6. Step 6: Final answer
    x = 16,369.33

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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.