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Finding the Fourth Proportional to 41,980.50, 57,927.81 and 28,398.18

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Solution

The fourth proportional to 41,980.50, 57,927.81 and 28,398.18 is: 39,185.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,980.50 : 57,927.81 = 28,398.18 : x
  2. Step 2: Convert to fraction form
    41,980.50/57,927.81 = 28,398.18/x
  3. Step 3: Cross multiply
    41,980.50x = 57,927.81 × 28,398.18
  4. Step 4: Simplify right side
    41,980.50x = 1,645,044,375.39
  5. Step 5: Solve for x
    x = 1,645,044,375.39/41,980.50
  6. Step 6: Final answer
    x = 39,185.92

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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.