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Finding the Fourth Proportional to 23,138.98, 34,712.11 and 8,351.51

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Solution

The fourth proportional to 23,138.98, 34,712.11 and 8,351.51 is: 12,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.98 : 34,712.11 = 8,351.51 : x
  2. Step 2: Convert to fraction form
    23,138.98/34,712.11 = 8,351.51/x
  3. Step 3: Cross multiply
    23,138.98x = 34,712.11 × 8,351.51
  4. Step 4: Simplify right side
    23,138.98x = 289,898,533.79
  5. Step 5: Solve for x
    x = 289,898,533.79/23,138.98
  6. Step 6: Final answer
    x = 12,528.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.