Home / 20,182.39-30,278.45-6,331.39

Finding the Fourth Proportional to 20,182.39, 30,278.45 and 6,331.39

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Solution

The fourth proportional to 20,182.39, 30,278.45 and 6,331.39 is: 9,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.39 : 30,278.45 = 6,331.39 : x
  2. Step 2: Convert to fraction form
    20,182.39/30,278.45 = 6,331.39/x
  3. Step 3: Cross multiply
    20,182.39x = 30,278.45 × 6,331.39
  4. Step 4: Simplify right side
    20,182.39x = 191,704,643.89
  5. Step 5: Solve for x
    x = 191,704,643.89/20,182.39
  6. Step 6: Final answer
    x = 9,498.61

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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.