Home / 20,080.70-27,711.32-11,006.28

Finding the Fourth Proportional to 20,080.70, 27,711.32 and 11,006.28

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Solution

The fourth proportional to 20,080.70, 27,711.32 and 11,006.28 is: 15,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.70 : 27,711.32 = 11,006.28 : x
  2. Step 2: Convert to fraction form
    20,080.70/27,711.32 = 11,006.28/x
  3. Step 3: Cross multiply
    20,080.70x = 27,711.32 × 11,006.28
  4. Step 4: Simplify right side
    20,080.70x = 304,998,547.09
  5. Step 5: Solve for x
    x = 304,998,547.09/20,080.70
  6. Step 6: Final answer
    x = 15,188.64

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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.