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Finding the Fourth Proportional to 34,839, 48,078.70 and 18,923.45

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Solution

The fourth proportional to 34,839, 48,078.70 and 18,923.45 is: 26,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,839 : 48,078.70 = 18,923.45 : x
  2. Step 2: Convert to fraction form
    34,839/48,078.70 = 18,923.45/x
  3. Step 3: Cross multiply
    34,839x = 48,078.70 × 18,923.45
  4. Step 4: Simplify right side
    34,839x = 909,814,587.81
  5. Step 5: Solve for x
    x = 909,814,587.81/34,839
  6. Step 6: Final answer
    x = 26,114.83

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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.