Home / 37,129.86-51,239.32-20,134.09

Finding the Fourth Proportional to 37,129.86, 51,239.32 and 20,134.09

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Solution

The fourth proportional to 37,129.86, 51,239.32 and 20,134.09 is: 27,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.86 : 51,239.32 = 20,134.09 : x
  2. Step 2: Convert to fraction form
    37,129.86/51,239.32 = 20,134.09/x
  3. Step 3: Cross multiply
    37,129.86x = 51,239.32 × 20,134.09
  4. Step 4: Simplify right side
    37,129.86x = 1,031,656,952.32
  5. Step 5: Solve for x
    x = 1,031,656,952.32/37,129.86
  6. Step 6: Final answer
    x = 27,785.11

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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.