Home / 21,796.62-30,078.45-12,364.98

Finding the Fourth Proportional to 21,796.62, 30,078.45 and 12,364.98

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Solution

The fourth proportional to 21,796.62, 30,078.45 and 12,364.98 is: 17,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,796.62 : 30,078.45 = 12,364.98 : x
  2. Step 2: Convert to fraction form
    21,796.62/30,078.45 = 12,364.98/x
  3. Step 3: Cross multiply
    21,796.62x = 30,078.45 × 12,364.98
  4. Step 4: Simplify right side
    21,796.62x = 371,919,432.68
  5. Step 5: Solve for x
    x = 371,919,432.68/21,796.62
  6. Step 6: Final answer
    x = 17,063.17

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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.