Home / 20,487.10-30,730.62-5,696.02

Finding the Fourth Proportional to 20,487.10, 30,730.62 and 5,696.02

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Solution

The fourth proportional to 20,487.10, 30,730.62 and 5,696.02 is: 8,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487.10 : 30,730.62 = 5,696.02 : x
  2. Step 2: Convert to fraction form
    20,487.10/30,730.62 = 5,696.02/x
  3. Step 3: Cross multiply
    20,487.10x = 30,730.62 × 5,696.02
  4. Step 4: Simplify right side
    20,487.10x = 175,042,226.13
  5. Step 5: Solve for x
    x = 175,042,226.13/20,487.10
  6. Step 6: Final answer
    x = 8,544.02

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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.