Home / 21,963.07-30,308.48-12,272.61

Finding the Fourth Proportional to 21,963.07, 30,308.48 and 12,272.61

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Solution

The fourth proportional to 21,963.07, 30,308.48 and 12,272.61 is: 16,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.07 : 30,308.48 = 12,272.61 : x
  2. Step 2: Convert to fraction form
    21,963.07/30,308.48 = 12,272.61/x
  3. Step 3: Cross multiply
    21,963.07x = 30,308.48 × 12,272.61
  4. Step 4: Simplify right side
    21,963.07x = 371,964,154.73
  5. Step 5: Solve for x
    x = 371,964,154.73/21,963.07
  6. Step 6: Final answer
    x = 16,935.89

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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.