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Finding the Fourth Proportional to 34,905, 48,168.54 and 20,757.54

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Solution

The fourth proportional to 34,905, 48,168.54 and 20,757.54 is: 28,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,905 : 48,168.54 = 20,757.54 : x
  2. Step 2: Convert to fraction form
    34,905/48,168.54 = 20,757.54/x
  3. Step 3: Cross multiply
    34,905x = 48,168.54 × 20,757.54
  4. Step 4: Simplify right side
    34,905x = 999,860,395.79
  5. Step 5: Solve for x
    x = 999,860,395.79/34,905
  6. Step 6: Final answer
    x = 28,645.19

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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.