Home / 20,288.66-27,999.83-11,677.46

Finding the Fourth Proportional to 20,288.66, 27,999.83 and 11,677.46

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Solution

The fourth proportional to 20,288.66, 27,999.83 and 11,677.46 is: 16,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.66 : 27,999.83 = 11,677.46 : x
  2. Step 2: Convert to fraction form
    20,288.66/27,999.83 = 11,677.46/x
  3. Step 3: Cross multiply
    20,288.66x = 27,999.83 × 11,677.46
  4. Step 4: Simplify right side
    20,288.66x = 326,966,696.45
  5. Step 5: Solve for x
    x = 326,966,696.45/20,288.66
  6. Step 6: Final answer
    x = 16,115.74

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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.