Home / 34,725.12-52,072.10-20,691.78

Finding the Fourth Proportional to 34,725.12, 52,072.10 and 20,691.78

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Solution

The fourth proportional to 34,725.12, 52,072.10 and 20,691.78 is: 31,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,725.12 : 52,072.10 = 20,691.78 : x
  2. Step 2: Convert to fraction form
    34,725.12/52,072.10 = 20,691.78/x
  3. Step 3: Cross multiply
    34,725.12x = 52,072.10 × 20,691.78
  4. Step 4: Simplify right side
    34,725.12x = 1,077,464,437.34
  5. Step 5: Solve for x
    x = 1,077,464,437.34/34,725.12
  6. Step 6: Final answer
    x = 31,028.39

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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.