Home / 21,957.80-30,301.92-12,267.27

Finding the Fourth Proportional to 21,957.80, 30,301.92 and 12,267.27

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Solution

The fourth proportional to 21,957.80, 30,301.92 and 12,267.27 is: 16,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.80 : 30,301.92 = 12,267.27 : x
  2. Step 2: Convert to fraction form
    21,957.80/30,301.92 = 12,267.27/x
  3. Step 3: Cross multiply
    21,957.80x = 30,301.92 × 12,267.27
  4. Step 4: Simplify right side
    21,957.80x = 371,721,834.16
  5. Step 5: Solve for x
    x = 371,721,834.16/21,957.80
  6. Step 6: Final answer
    x = 16,928.92

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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.