Home / 21,940.49-30,277.95-11,869.02

Finding the Fourth Proportional to 21,940.49, 30,277.95 and 11,869.02

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Solution

The fourth proportional to 21,940.49, 30,277.95 and 11,869.02 is: 16,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.49 : 30,277.95 = 11,869.02 : x
  2. Step 2: Convert to fraction form
    21,940.49/30,277.95 = 11,869.02/x
  3. Step 3: Cross multiply
    21,940.49x = 30,277.95 × 11,869.02
  4. Step 4: Simplify right side
    21,940.49x = 359,369,594.11
  5. Step 5: Solve for x
    x = 359,369,594.11/21,940.49
  6. Step 6: Final answer
    x = 16,379.29

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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.