Home / 38,820.35-58,242.83-13,859.87

Finding the Fourth Proportional to 38,820.35, 58,242.83 and 13,859.87

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Solution

The fourth proportional to 38,820.35, 58,242.83 and 13,859.87 is: 20,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,820.35 : 58,242.83 = 13,859.87 : x
  2. Step 2: Convert to fraction form
    38,820.35/58,242.83 = 13,859.87/x
  3. Step 3: Cross multiply
    38,820.35x = 58,242.83 × 13,859.87
  4. Step 4: Simplify right side
    38,820.35x = 807,237,691.72
  5. Step 5: Solve for x
    x = 807,237,691.72/38,820.35
  6. Step 6: Final answer
    x = 20,794.19

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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.