Home / 37,764.28-52,121.23-21,857.50

Finding the Fourth Proportional to 37,764.28, 52,121.23 and 21,857.50

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Solution

The fourth proportional to 37,764.28, 52,121.23 and 21,857.50 is: 30,167.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,764.28 : 52,121.23 = 21,857.50 : x
  2. Step 2: Convert to fraction form
    37,764.28/52,121.23 = 21,857.50/x
  3. Step 3: Cross multiply
    37,764.28x = 52,121.23 × 21,857.50
  4. Step 4: Simplify right side
    37,764.28x = 1,139,239,599.78
  5. Step 5: Solve for x
    x = 1,139,239,599.78/37,764.28
  6. Step 6: Final answer
    x = 30,167.12

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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.