Home / 21,540.83-32,316.39-10,434.53

Finding the Fourth Proportional to 21,540.83, 32,316.39 and 10,434.53

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Solution

The fourth proportional to 21,540.83, 32,316.39 and 10,434.53 is: 15,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.83 : 32,316.39 = 10,434.53 : x
  2. Step 2: Convert to fraction form
    21,540.83/32,316.39 = 10,434.53/x
  3. Step 3: Cross multiply
    21,540.83x = 32,316.39 × 10,434.53
  4. Step 4: Simplify right side
    21,540.83x = 337,206,179.36
  5. Step 5: Solve for x
    x = 337,206,179.36/21,540.83
  6. Step 6: Final answer
    x = 15,654.28

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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.