Home / 36,979.08-51,031.86-20,212.68

Finding the Fourth Proportional to 36,979.08, 51,031.86 and 20,212.68

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Solution

The fourth proportional to 36,979.08, 51,031.86 and 20,212.68 is: 27,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.08 : 51,031.86 = 20,212.68 : x
  2. Step 2: Convert to fraction form
    36,979.08/51,031.86 = 20,212.68/x
  3. Step 3: Cross multiply
    36,979.08x = 51,031.86 × 20,212.68
  4. Step 4: Simplify right side
    36,979.08x = 1,031,490,655.98
  5. Step 5: Solve for x
    x = 1,031,490,655.98/36,979.08
  6. Step 6: Final answer
    x = 27,893.90

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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.