Home / 20,099.77-27,736.98-11,148.10

Finding the Fourth Proportional to 20,099.77, 27,736.98 and 11,148.10

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Solution

The fourth proportional to 20,099.77, 27,736.98 and 11,148.10 is: 15,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.77 : 27,736.98 = 11,148.10 : x
  2. Step 2: Convert to fraction form
    20,099.77/27,736.98 = 11,148.10/x
  3. Step 3: Cross multiply
    20,099.77x = 27,736.98 × 11,148.10
  4. Step 4: Simplify right side
    20,099.77x = 309,214,626.74
  5. Step 5: Solve for x
    x = 309,214,626.74/20,099.77
  6. Step 6: Final answer
    x = 15,383.99

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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.