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Finding the Fourth Proportional to 37,612.92, 51,905.51 and 20,618.12

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Solution

The fourth proportional to 37,612.92, 51,905.51 and 20,618.12 is: 28,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,612.92 : 51,905.51 = 20,618.12 : x
  2. Step 2: Convert to fraction form
    37,612.92/51,905.51 = 20,618.12/x
  3. Step 3: Cross multiply
    37,612.92x = 51,905.51 × 20,618.12
  4. Step 4: Simplify right side
    37,612.92x = 1,070,194,033.84
  5. Step 5: Solve for x
    x = 1,070,194,033.84/37,612.92
  6. Step 6: Final answer
    x = 28,452.83

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1.5x scale

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.