Home / 21,660.53-29,891.72-12,463.46

Finding the Fourth Proportional to 21,660.53, 29,891.72 and 12,463.46

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Solution

The fourth proportional to 21,660.53, 29,891.72 and 12,463.46 is: 17,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.53 : 29,891.72 = 12,463.46 : x
  2. Step 2: Convert to fraction form
    21,660.53/29,891.72 = 12,463.46/x
  3. Step 3: Cross multiply
    21,660.53x = 29,891.72 × 12,463.46
  4. Step 4: Simplify right side
    21,660.53x = 372,554,107.09
  5. Step 5: Solve for x
    x = 372,554,107.09/21,660.53
  6. Step 6: Final answer
    x = 17,199.68

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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.