Home / 20,260.19-27,956.25-11,305.96

Finding the Fourth Proportional to 20,260.19, 27,956.25 and 11,305.96

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Solution

The fourth proportional to 20,260.19, 27,956.25 and 11,305.96 is: 15,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.19 : 27,956.25 = 11,305.96 : x
  2. Step 2: Convert to fraction form
    20,260.19/27,956.25 = 11,305.96/x
  3. Step 3: Cross multiply
    20,260.19x = 27,956.25 × 11,305.96
  4. Step 4: Simplify right side
    20,260.19x = 316,072,174.36
  5. Step 5: Solve for x
    x = 316,072,174.36/20,260.19
  6. Step 6: Final answer
    x = 15,600.65

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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.