Home / 20,215.92-30,322.85-7,734.98

Finding the Fourth Proportional to 20,215.92, 30,322.85 and 7,734.98

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Solution

The fourth proportional to 20,215.92, 30,322.85 and 7,734.98 is: 11,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.92 : 30,322.85 = 7,734.98 : x
  2. Step 2: Convert to fraction form
    20,215.92/30,322.85 = 7,734.98/x
  3. Step 3: Cross multiply
    20,215.92x = 30,322.85 × 7,734.98
  4. Step 4: Simplify right side
    20,215.92x = 234,546,733.44
  5. Step 5: Solve for x
    x = 234,546,733.44/20,215.92
  6. Step 6: Final answer
    x = 11,602.08

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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.