Home / 20,087.04-30,120.96-6,228.48

Finding the Fourth Proportional to 20,087.04, 30,120.96 and 6,228.48

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Solution

The fourth proportional to 20,087.04, 30,120.96 and 6,228.48 is: 9,339.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.04 : 30,120.96 = 6,228.48 : x
  2. Step 2: Convert to fraction form
    20,087.04/30,120.96 = 6,228.48/x
  3. Step 3: Cross multiply
    20,087.04x = 30,120.96 × 6,228.48
  4. Step 4: Simplify right side
    20,087.04x = 187,607,796.94
  5. Step 5: Solve for x
    x = 187,607,796.94/20,087.04
  6. Step 6: Final answer
    x = 9,339.74

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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.