Home / 20,614.96-28,431.08-15,846.44

Finding the Fourth Proportional to 20,614.96, 28,431.08 and 15,846.44

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Solution

The fourth proportional to 20,614.96, 28,431.08 and 15,846.44 is: 21,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.96 : 28,431.08 = 15,846.44 : x
  2. Step 2: Convert to fraction form
    20,614.96/28,431.08 = 15,846.44/x
  3. Step 3: Cross multiply
    20,614.96x = 28,431.08 × 15,846.44
  4. Step 4: Simplify right side
    20,614.96x = 450,531,454.62
  5. Step 5: Solve for x
    x = 450,531,454.62/20,614.96
  6. Step 6: Final answer
    x = 21,854.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.