Home / 20,178.24-30,267.36-6,138.24

Finding the Fourth Proportional to 20,178.24, 30,267.36 and 6,138.24

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Solution

The fourth proportional to 20,178.24, 30,267.36 and 6,138.24 is: 9,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.24 : 30,267.36 = 6,138.24 : x
  2. Step 2: Convert to fraction form
    20,178.24/30,267.36 = 6,138.24/x
  3. Step 3: Cross multiply
    20,178.24x = 30,267.36 × 6,138.24
  4. Step 4: Simplify right side
    20,178.24x = 185,788,319.85
  5. Step 5: Solve for x
    x = 185,788,319.85/20,178.24
  6. Step 6: Final answer
    x = 9,207.36

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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.