Home / 20,434.82-30,636.64-10,567.80

Finding the Fourth Proportional to 20,434.82, 30,636.64 and 10,567.80

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Solution

The fourth proportional to 20,434.82, 30,636.64 and 10,567.80 is: 15,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.82 : 30,636.64 = 10,567.80 : x
  2. Step 2: Convert to fraction form
    20,434.82/30,636.64 = 10,567.80/x
  3. Step 3: Cross multiply
    20,434.82x = 30,636.64 × 10,567.80
  4. Step 4: Simplify right side
    20,434.82x = 323,761,884.19
  5. Step 5: Solve for x
    x = 323,761,884.19/20,434.82
  6. Step 6: Final answer
    x = 15,843.64

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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.