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Finding the Fourth Proportional to 41,930.80, 62,900.30 and 15,629.40

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Solution

The fourth proportional to 41,930.80, 62,900.30 and 15,629.40 is: 23,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,930.80 : 62,900.30 = 15,629.40 : x
  2. Step 2: Convert to fraction form
    41,930.80/62,900.30 = 15,629.40/x
  3. Step 3: Cross multiply
    41,930.80x = 62,900.30 × 15,629.40
  4. Step 4: Simplify right side
    41,930.80x = 983,093,948.82
  5. Step 5: Solve for x
    x = 983,093,948.82/41,930.80
  6. Step 6: Final answer
    x = 23,445.63

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1.5x scale

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.