Home / 36,979.14-51,031.60-20,212.14

Finding the Fourth Proportional to 36,979.14, 51,031.60 and 20,212.14

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Solution

The fourth proportional to 36,979.14, 51,031.60 and 20,212.14 is: 27,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.14 : 51,031.60 = 20,212.14 : x
  2. Step 2: Convert to fraction form
    36,979.14/51,031.60 = 20,212.14/x
  3. Step 3: Cross multiply
    36,979.14x = 51,031.60 × 20,212.14
  4. Step 4: Simplify right side
    36,979.14x = 1,031,457,843.62
  5. Step 5: Solve for x
    x = 1,031,457,843.62/36,979.14
  6. Step 6: Final answer
    x = 27,892.96

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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.