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Finding the Fourth Proportional to 34,119.76, 51,169.92 and 21,620.92

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Solution

The fourth proportional to 34,119.76, 51,169.92 and 21,620.92 is: 32,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,119.76 : 51,169.92 = 21,620.92 : x
  2. Step 2: Convert to fraction form
    34,119.76/51,169.92 = 21,620.92/x
  3. Step 3: Cross multiply
    34,119.76x = 51,169.92 × 21,620.92
  4. Step 4: Simplify right side
    34,119.76x = 1,106,340,746.73
  5. Step 5: Solve for x
    x = 1,106,340,746.73/34,119.76
  6. Step 6: Final answer
    x = 32,425.22

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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.