Home / 37,940-52,357.20-21,173.12

Finding the Fourth Proportional to 37,940, 52,357.20 and 21,173.12

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Solution

The fourth proportional to 37,940, 52,357.20 and 21,173.12 is: 29,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,940 : 52,357.20 = 21,173.12 : x
  2. Step 2: Convert to fraction form
    37,940/52,357.20 = 21,173.12/x
  3. Step 3: Cross multiply
    37,940x = 52,357.20 × 21,173.12
  4. Step 4: Simplify right side
    37,940x = 1,108,565,278.46
  5. Step 5: Solve for x
    x = 1,108,565,278.46/37,940
  6. Step 6: Final answer
    x = 29,218.91

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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.