Home / 21,546.28-29,730.36-12,112.96

Finding the Fourth Proportional to 21,546.28, 29,730.36 and 12,112.96

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Solution

The fourth proportional to 21,546.28, 29,730.36 and 12,112.96 is: 16,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,546.28 : 29,730.36 = 12,112.96 : x
  2. Step 2: Convert to fraction form
    21,546.28/29,730.36 = 12,112.96/x
  3. Step 3: Cross multiply
    21,546.28x = 29,730.36 × 12,112.96
  4. Step 4: Simplify right side
    21,546.28x = 360,122,661.47
  5. Step 5: Solve for x
    x = 360,122,661.47/21,546.28
  6. Step 6: Final answer
    x = 16,713.91

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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.