Home / 28,730.20-43,102.20-9,008.76

Finding the Fourth Proportional to 28,730.20, 43,102.20 and 9,008.76

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Solution

The fourth proportional to 28,730.20, 43,102.20 and 9,008.76 is: 13,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.20 : 43,102.20 = 9,008.76 : x
  2. Step 2: Convert to fraction form
    28,730.20/43,102.20 = 9,008.76/x
  3. Step 3: Cross multiply
    28,730.20x = 43,102.20 × 9,008.76
  4. Step 4: Simplify right side
    28,730.20x = 388,297,375.27
  5. Step 5: Solve for x
    x = 388,297,375.27/28,730.20
  6. Step 6: Final answer
    x = 13,515.30

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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.