Home / 36,979.86-51,032.25-20,212.86

Finding the Fourth Proportional to 36,979.86, 51,032.25 and 20,212.86

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Solution

The fourth proportional to 36,979.86, 51,032.25 and 20,212.86 is: 27,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.86 : 51,032.25 = 20,212.86 : x
  2. Step 2: Convert to fraction form
    36,979.86/51,032.25 = 20,212.86/x
  3. Step 3: Cross multiply
    36,979.86x = 51,032.25 × 20,212.86
  4. Step 4: Simplify right side
    36,979.86x = 1,031,507,724.74
  5. Step 5: Solve for x
    x = 1,031,507,724.74/36,979.86
  6. Step 6: Final answer
    x = 27,893.77

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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.