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Finding the Fourth Proportional to 37,957, 52,380.90 and 21,190.12

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Solution

The fourth proportional to 37,957, 52,380.90 and 21,190.12 is: 29,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,957 : 52,380.90 = 21,190.12 : x
  2. Step 2: Convert to fraction form
    37,957/52,380.90 = 21,190.12/x
  3. Step 3: Cross multiply
    37,957x = 52,380.90 × 21,190.12
  4. Step 4: Simplify right side
    37,957x = 1,109,957,556.71
  5. Step 5: Solve for x
    x = 1,109,957,556.71/37,957
  6. Step 6: Final answer
    x = 29,242.50

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1.5x scale

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.