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Finding the Fourth Proportional to 18,305.32, 27,454.32 and 10,811.68

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Solution

The fourth proportional to 18,305.32, 27,454.32 and 10,811.68 is: 16,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.32 : 27,454.32 = 10,811.68 : x
  2. Step 2: Convert to fraction form
    18,305.32/27,454.32 = 10,811.68/x
  3. Step 3: Cross multiply
    18,305.32x = 27,454.32 × 10,811.68
  4. Step 4: Simplify right side
    18,305.32x = 296,827,322.46
  5. Step 5: Solve for x
    x = 296,827,322.46/18,305.32
  6. Step 6: Final answer
    x = 16,215.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.