Home / 37,623-51,919.74-20,856

Finding the Fourth Proportional to 37,623, 51,919.74 and 20,856

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Solution

The fourth proportional to 37,623, 51,919.74 and 20,856 is: 28,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,623 : 51,919.74 = 20,856 : x
  2. Step 2: Convert to fraction form
    37,623/51,919.74 = 20,856/x
  3. Step 3: Cross multiply
    37,623x = 51,919.74 × 20,856
  4. Step 4: Simplify right side
    37,623x = 1,082,838,097.44
  5. Step 5: Solve for x
    x = 1,082,838,097.44/37,623
  6. Step 6: Final answer
    x = 28,781.28

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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.