Home / 34,905.20-48,169.28-18,989.64

Finding the Fourth Proportional to 34,905.20, 48,169.28 and 18,989.64

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Solution

The fourth proportional to 34,905.20, 48,169.28 and 18,989.64 is: 26,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905.20 : 48,169.28 = 18,989.64 : x
  2. Step 2: Convert to fraction form
    34,905.20/48,169.28 = 18,989.64/x
  3. Step 3: Cross multiply
    34,905.20x = 48,169.28 × 18,989.64
  4. Step 4: Simplify right side
    34,905.20x = 914,717,333.73
  5. Step 5: Solve for x
    x = 914,717,333.73/34,905.20
  6. Step 6: Final answer
    x = 26,205.76

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1.5x scale

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.