Home / 20,427.48-30,633.66-7,276.36

Finding the Fourth Proportional to 20,427.48, 30,633.66 and 7,276.36

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Solution

The fourth proportional to 20,427.48, 30,633.66 and 7,276.36 is: 10,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.48 : 30,633.66 = 7,276.36 : x
  2. Step 2: Convert to fraction form
    20,427.48/30,633.66 = 7,276.36/x
  3. Step 3: Cross multiply
    20,427.48x = 30,633.66 × 7,276.36
  4. Step 4: Simplify right side
    20,427.48x = 222,901,538.28
  5. Step 5: Solve for x
    x = 222,901,538.28/20,427.48
  6. Step 6: Final answer
    x = 10,911.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.