Home / 21,736.56-29,996.46-12,305.13

Finding the Fourth Proportional to 21,736.56, 29,996.46 and 12,305.13

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Solution

The fourth proportional to 21,736.56, 29,996.46 and 12,305.13 is: 16,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.56 : 29,996.46 = 12,305.13 : x
  2. Step 2: Convert to fraction form
    21,736.56/29,996.46 = 12,305.13/x
  3. Step 3: Cross multiply
    21,736.56x = 29,996.46 × 12,305.13
  4. Step 4: Simplify right side
    21,736.56x = 369,110,339.84
  5. Step 5: Solve for x
    x = 369,110,339.84/21,736.56
  6. Step 6: Final answer
    x = 16,981.08

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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.