Home / 21,863.93-30,171.49-12,304.00

Finding the Fourth Proportional to 21,863.93, 30,171.49 and 12,304.00

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Solution

The fourth proportional to 21,863.93, 30,171.49 and 12,304.00 is: 16,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.93 : 30,171.49 = 12,304.00 : x
  2. Step 2: Convert to fraction form
    21,863.93/30,171.49 = 12,304.00/x
  3. Step 3: Cross multiply
    21,863.93x = 30,171.49 × 12,304.00
  4. Step 4: Simplify right side
    21,863.93x = 371,230,019.91
  5. Step 5: Solve for x
    x = 371,230,019.91/21,863.93
  6. Step 6: Final answer
    x = 16,979.11

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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.