Home / 21,237.92-29,304.88-11,806.24

Finding the Fourth Proportional to 21,237.92, 29,304.88 and 11,806.24

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Solution

The fourth proportional to 21,237.92, 29,304.88 and 11,806.24 is: 16,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.92 : 29,304.88 = 11,806.24 : x
  2. Step 2: Convert to fraction form
    21,237.92/29,304.88 = 11,806.24/x
  3. Step 3: Cross multiply
    21,237.92x = 29,304.88 × 11,806.24
  4. Step 4: Simplify right side
    21,237.92x = 345,980,446.45
  5. Step 5: Solve for x
    x = 345,980,446.45/21,237.92
  6. Step 6: Final answer
    x = 16,290.69

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1.5x scale

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.