Home / 28,930.57-39,941.60-18,876.44

Finding the Fourth Proportional to 28,930.57, 39,941.60 and 18,876.44

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Solution

The fourth proportional to 28,930.57, 39,941.60 and 18,876.44 is: 26,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.57 : 39,941.60 = 18,876.44 : x
  2. Step 2: Convert to fraction form
    28,930.57/39,941.60 = 18,876.44/x
  3. Step 3: Cross multiply
    28,930.57x = 39,941.60 × 18,876.44
  4. Step 4: Simplify right side
    28,930.57x = 753,955,121.52
  5. Step 5: Solve for x
    x = 753,955,121.52/28,930.57
  6. Step 6: Final answer
    x = 26,060.85

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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.