Home / 37,105.62-55,646.56-12,138.92

Finding the Fourth Proportional to 37,105.62, 55,646.56 and 12,138.92

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Solution

The fourth proportional to 37,105.62, 55,646.56 and 12,138.92 is: 18,204.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,105.62 : 55,646.56 = 12,138.92 : x
  2. Step 2: Convert to fraction form
    37,105.62/55,646.56 = 12,138.92/x
  3. Step 3: Cross multiply
    37,105.62x = 55,646.56 × 12,138.92
  4. Step 4: Simplify right side
    37,105.62x = 675,489,140.12
  5. Step 5: Solve for x
    x = 675,489,140.12/37,105.62
  6. Step 6: Final answer
    x = 18,204.50

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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.