Home / 15,727.82-21,706.50-14,399.14

Finding the Fourth Proportional to 15,727.82, 21,706.50 and 14,399.14

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Solution

The fourth proportional to 15,727.82, 21,706.50 and 14,399.14 is: 19,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.82 : 21,706.50 = 14,399.14 : x
  2. Step 2: Convert to fraction form
    15,727.82/21,706.50 = 14,399.14/x
  3. Step 3: Cross multiply
    15,727.82x = 21,706.50 × 14,399.14
  4. Step 4: Simplify right side
    15,727.82x = 312,554,932.41
  5. Step 5: Solve for x
    x = 312,554,932.41/15,727.82
  6. Step 6: Final answer
    x = 19,872.74

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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.