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Finding the Fourth Proportional to 37,851.80, 56,803.30 and 21,211.80

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Solution

The fourth proportional to 37,851.80, 56,803.30 and 21,211.80 is: 31,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,851.80 : 56,803.30 = 21,211.80 : x
  2. Step 2: Convert to fraction form
    37,851.80/56,803.30 = 21,211.80/x
  3. Step 3: Cross multiply
    37,851.80x = 56,803.30 × 21,211.80
  4. Step 4: Simplify right side
    37,851.80x = 1,204,900,238.94
  5. Step 5: Solve for x
    x = 1,204,900,238.94/37,851.80
  6. Step 6: Final answer
    x = 31,832.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.