Home / 20,434.85-30,636.69-10,567.83

Finding the Fourth Proportional to 20,434.85, 30,636.69 and 10,567.83

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Solution

The fourth proportional to 20,434.85, 30,636.69 and 10,567.83 is: 15,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.85 : 30,636.69 = 10,567.83 : x
  2. Step 2: Convert to fraction form
    20,434.85/30,636.69 = 10,567.83/x
  3. Step 3: Cross multiply
    20,434.85x = 30,636.69 × 10,567.83
  4. Step 4: Simplify right side
    20,434.85x = 323,763,331.68
  5. Step 5: Solve for x
    x = 323,763,331.68/20,434.85
  6. Step 6: Final answer
    x = 15,843.69

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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.