Home / 20,231.66-30,347.77-7,752.32

Finding the Fourth Proportional to 20,231.66, 30,347.77 and 7,752.32

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Solution

The fourth proportional to 20,231.66, 30,347.77 and 7,752.32 is: 11,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.66 : 30,347.77 = 7,752.32 : x
  2. Step 2: Convert to fraction form
    20,231.66/30,347.77 = 7,752.32/x
  3. Step 3: Cross multiply
    20,231.66x = 30,347.77 × 7,752.32
  4. Step 4: Simplify right side
    20,231.66x = 235,265,624.33
  5. Step 5: Solve for x
    x = 235,265,624.33/20,231.66
  6. Step 6: Final answer
    x = 11,628.59

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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.