Home / 38,739.74-58,111.43-12,103.90

Finding the Fourth Proportional to 38,739.74, 58,111.43 and 12,103.90

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Solution

The fourth proportional to 38,739.74, 58,111.43 and 12,103.90 is: 18,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,739.74 : 58,111.43 = 12,103.90 : x
  2. Step 2: Convert to fraction form
    38,739.74/58,111.43 = 12,103.90/x
  3. Step 3: Cross multiply
    38,739.74x = 58,111.43 × 12,103.90
  4. Step 4: Simplify right side
    38,739.74x = 703,374,731.78
  5. Step 5: Solve for x
    x = 703,374,731.78/38,739.74
  6. Step 6: Final answer
    x = 18,156.42

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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.