Home / 35,103.78-48,445.70-20,775.29

Finding the Fourth Proportional to 35,103.78, 48,445.70 and 20,775.29

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Solution

The fourth proportional to 35,103.78, 48,445.70 and 20,775.29 is: 28,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,103.78 : 48,445.70 = 20,775.29 : x
  2. Step 2: Convert to fraction form
    35,103.78/48,445.70 = 20,775.29/x
  3. Step 3: Cross multiply
    35,103.78x = 48,445.70 × 20,775.29
  4. Step 4: Simplify right side
    35,103.78x = 1,006,473,120.65
  5. Step 5: Solve for x
    x = 1,006,473,120.65/35,103.78
  6. Step 6: Final answer
    x = 28,671.36

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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.