Home / 38,137.92-52,632.96-21,372

Finding the Fourth Proportional to 38,137.92, 52,632.96 and 21,372

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Solution

The fourth proportional to 38,137.92, 52,632.96 and 21,372 is: 29,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137.92 : 52,632.96 = 21,372 : x
  2. Step 2: Convert to fraction form
    38,137.92/52,632.96 = 21,372/x
  3. Step 3: Cross multiply
    38,137.92x = 52,632.96 × 21,372
  4. Step 4: Simplify right side
    38,137.92x = 1,124,871,621.12
  5. Step 5: Solve for x
    x = 1,124,871,621.12/38,137.92
  6. Step 6: Final answer
    x = 29,494.83

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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.