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Finding the Fourth Proportional to 35,376, 48,812.32 and 21,040.60

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Solution

The fourth proportional to 35,376, 48,812.32 and 21,040.60 is: 29,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,376 : 48,812.32 = 21,040.60 : x
  2. Step 2: Convert to fraction form
    35,376/48,812.32 = 21,040.60/x
  3. Step 3: Cross multiply
    35,376x = 48,812.32 × 21,040.60
  4. Step 4: Simplify right side
    35,376x = 1,027,040,500.19
  5. Step 5: Solve for x
    x = 1,027,040,500.19/35,376
  6. Step 6: Final answer
    x = 29,032.13

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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.