Home / 20,110.66-30,166.52-7,628.36

Finding the Fourth Proportional to 20,110.66, 30,166.52 and 7,628.36

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Solution

The fourth proportional to 20,110.66, 30,166.52 and 7,628.36 is: 11,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.66 : 30,166.52 = 7,628.36 : x
  2. Step 2: Convert to fraction form
    20,110.66/30,166.52 = 7,628.36/x
  3. Step 3: Cross multiply
    20,110.66x = 30,166.52 × 7,628.36
  4. Step 4: Simplify right side
    20,110.66x = 230,121,074.51
  5. Step 5: Solve for x
    x = 230,121,074.51/20,110.66
  6. Step 6: Final answer
    x = 11,442.74

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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.