Home / 37,764.78-52,121.92-21,858

Finding the Fourth Proportional to 37,764.78, 52,121.92 and 21,858

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Solution

The fourth proportional to 37,764.78, 52,121.92 and 21,858 is: 30,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,764.78 : 52,121.92 = 21,858 : x
  2. Step 2: Convert to fraction form
    37,764.78/52,121.92 = 21,858/x
  3. Step 3: Cross multiply
    37,764.78x = 52,121.92 × 21,858
  4. Step 4: Simplify right side
    37,764.78x = 1,139,280,927.36
  5. Step 5: Solve for x
    x = 1,139,280,927.36/37,764.78
  6. Step 6: Final answer
    x = 30,167.82

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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.