Home / 21,736.32-29,998.80-12,304.68

Finding the Fourth Proportional to 21,736.32, 29,998.80 and 12,304.68

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Solution

The fourth proportional to 21,736.32, 29,998.80 and 12,304.68 is: 16,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.32 : 29,998.80 = 12,304.68 : x
  2. Step 2: Convert to fraction form
    21,736.32/29,998.80 = 12,304.68/x
  3. Step 3: Cross multiply
    21,736.32x = 29,998.80 × 12,304.68
  4. Step 4: Simplify right side
    21,736.32x = 369,125,634.38
  5. Step 5: Solve for x
    x = 369,125,634.38/21,736.32
  6. Step 6: Final answer
    x = 16,981.97

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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.