Home / 20,264.94-27,968.15-12,305.07

Finding the Fourth Proportional to 20,264.94, 27,968.15 and 12,305.07

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Solution

The fourth proportional to 20,264.94, 27,968.15 and 12,305.07 is: 16,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.94 : 27,968.15 = 12,305.07 : x
  2. Step 2: Convert to fraction form
    20,264.94/27,968.15 = 12,305.07/x
  3. Step 3: Cross multiply
    20,264.94x = 27,968.15 × 12,305.07
  4. Step 4: Simplify right side
    20,264.94x = 344,150,043.52
  5. Step 5: Solve for x
    x = 344,150,043.52/20,264.94
  6. Step 6: Final answer
    x = 16,982.53

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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.