Home / 32,940.11-45,414.45-20,999.09

Finding the Fourth Proportional to 32,940.11, 45,414.45 and 20,999.09

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Solution

The fourth proportional to 32,940.11, 45,414.45 and 20,999.09 is: 28,951.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,940.11 : 45,414.45 = 20,999.09 : x
  2. Step 2: Convert to fraction form
    32,940.11/45,414.45 = 20,999.09/x
  3. Step 3: Cross multiply
    32,940.11x = 45,414.45 × 20,999.09
  4. Step 4: Simplify right side
    32,940.11x = 953,661,895.78
  5. Step 5: Solve for x
    x = 953,661,895.78/32,940.11
  6. Step 6: Final answer
    x = 28,951.39

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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.