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Finding the Fourth Proportional to 30,372.76, 41,900.70 and 17,792.20

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Solution

The fourth proportional to 30,372.76, 41,900.70 and 17,792.20 is: 24,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.76 : 41,900.70 = 17,792.20 : x
  2. Step 2: Convert to fraction form
    30,372.76/41,900.70 = 17,792.20/x
  3. Step 3: Cross multiply
    30,372.76x = 41,900.70 × 17,792.20
  4. Step 4: Simplify right side
    30,372.76x = 745,505,634.54
  5. Step 5: Solve for x
    x = 745,505,634.54/30,372.76
  6. Step 6: Final answer
    x = 24,545.21

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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.