Home / 20,749.05-28,635.39-11,799.36

Finding the Fourth Proportional to 20,749.05, 28,635.39 and 11,799.36

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Solution

The fourth proportional to 20,749.05, 28,635.39 and 11,799.36 is: 16,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.05 : 28,635.39 = 11,799.36 : x
  2. Step 2: Convert to fraction form
    20,749.05/28,635.39 = 11,799.36/x
  3. Step 3: Cross multiply
    20,749.05x = 28,635.39 × 11,799.36
  4. Step 4: Simplify right side
    20,749.05x = 337,879,275.35
  5. Step 5: Solve for x
    x = 337,879,275.35/20,749.05
  6. Step 6: Final answer
    x = 16,284.08

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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.