Home / 20,629.48-30,944.31-7,476.70

Finding the Fourth Proportional to 20,629.48, 30,944.31 and 7,476.70

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Solution

The fourth proportional to 20,629.48, 30,944.31 and 7,476.70 is: 11,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.48 : 30,944.31 = 7,476.70 : x
  2. Step 2: Convert to fraction form
    20,629.48/30,944.31 = 7,476.70/x
  3. Step 3: Cross multiply
    20,629.48x = 30,944.31 × 7,476.70
  4. Step 4: Simplify right side
    20,629.48x = 231,361,322.58
  5. Step 5: Solve for x
    x = 231,361,322.58/20,629.48
  6. Step 6: Final answer
    x = 11,215.08

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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.