Home / 20,039.76-27,654.30-11,086.98

Finding the Fourth Proportional to 20,039.76, 27,654.30 and 11,086.98

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Solution

The fourth proportional to 20,039.76, 27,654.30 and 11,086.98 is: 15,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.76 : 27,654.30 = 11,086.98 : x
  2. Step 2: Convert to fraction form
    20,039.76/27,654.30 = 11,086.98/x
  3. Step 3: Cross multiply
    20,039.76x = 27,654.30 × 11,086.98
  4. Step 4: Simplify right side
    20,039.76x = 306,602,671.01
  5. Step 5: Solve for x
    x = 306,602,671.01/20,039.76
  6. Step 6: Final answer
    x = 15,299.72

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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.