Home / 20,178.25-30,267.05-9,077.09

Finding the Fourth Proportional to 20,178.25, 30,267.05 and 9,077.09

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Solution

The fourth proportional to 20,178.25, 30,267.05 and 9,077.09 is: 13,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.25 : 30,267.05 = 9,077.09 : x
  2. Step 2: Convert to fraction form
    20,178.25/30,267.05 = 9,077.09/x
  3. Step 3: Cross multiply
    20,178.25x = 30,267.05 × 9,077.09
  4. Step 4: Simplify right side
    20,178.25x = 274,736,540.16
  5. Step 5: Solve for x
    x = 274,736,540.16/20,178.25
  6. Step 6: Final answer
    x = 13,615.48

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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.