Home / 35,330.18-48,754.78-20,221.85

Finding the Fourth Proportional to 35,330.18, 48,754.78 and 20,221.85

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Solution

The fourth proportional to 35,330.18, 48,754.78 and 20,221.85 is: 27,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,330.18 : 48,754.78 = 20,221.85 : x
  2. Step 2: Convert to fraction form
    35,330.18/48,754.78 = 20,221.85/x
  3. Step 3: Cross multiply
    35,330.18x = 48,754.78 × 20,221.85
  4. Step 4: Simplify right side
    35,330.18x = 985,911,919.28
  5. Step 5: Solve for x
    x = 985,911,919.28/35,330.18
  6. Step 6: Final answer
    x = 27,905.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.