Home / 37,138.43-51,251.07-20,142.67

Finding the Fourth Proportional to 37,138.43, 51,251.07 and 20,142.67

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Solution

The fourth proportional to 37,138.43, 51,251.07 and 20,142.67 is: 27,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.43 : 51,251.07 = 20,142.67 : x
  2. Step 2: Convert to fraction form
    37,138.43/51,251.07 = 20,142.67/x
  3. Step 3: Cross multiply
    37,138.43x = 51,251.07 × 20,142.67
  4. Step 4: Simplify right side
    37,138.43x = 1,032,333,390.16
  5. Step 5: Solve for x
    x = 1,032,333,390.16/37,138.43
  6. Step 6: Final answer
    x = 27,796.90

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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.