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Finding the Fourth Proportional to 35,371.50, 48,812.70 and 20,467.50

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Solution

The fourth proportional to 35,371.50, 48,812.70 and 20,467.50 is: 28,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,371.50 : 48,812.70 = 20,467.50 : x
  2. Step 2: Convert to fraction form
    35,371.50/48,812.70 = 20,467.50/x
  3. Step 3: Cross multiply
    35,371.50x = 48,812.70 × 20,467.50
  4. Step 4: Simplify right side
    35,371.50x = 999,073,937.25
  5. Step 5: Solve for x
    x = 999,073,937.25/35,371.50
  6. Step 6: Final answer
    x = 28,245.17

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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.