Home / 18,730.20-28,107.45-10,832.70

Finding the Fourth Proportional to 18,730.20, 28,107.45 and 10,832.70

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Solution

The fourth proportional to 18,730.20, 28,107.45 and 10,832.70 is: 16,256.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.20 : 28,107.45 = 10,832.70 : x
  2. Step 2: Convert to fraction form
    18,730.20/28,107.45 = 10,832.70/x
  3. Step 3: Cross multiply
    18,730.20x = 28,107.45 × 10,832.70
  4. Step 4: Simplify right side
    18,730.20x = 304,479,573.62
  5. Step 5: Solve for x
    x = 304,479,573.62/18,730.20
  6. Step 6: Final answer
    x = 16,256.08

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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.