Home / 20,100.69-27,738.45-11,148.17

Finding the Fourth Proportional to 20,100.69, 27,738.45 and 11,148.17

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Solution

The fourth proportional to 20,100.69, 27,738.45 and 11,148.17 is: 15,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.69 : 27,738.45 = 11,148.17 : x
  2. Step 2: Convert to fraction form
    20,100.69/27,738.45 = 11,148.17/x
  3. Step 3: Cross multiply
    20,100.69x = 27,738.45 × 11,148.17
  4. Step 4: Simplify right side
    20,100.69x = 309,232,817.44
  5. Step 5: Solve for x
    x = 309,232,817.44/20,100.69
  6. Step 6: Final answer
    x = 15,384.19

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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.