Home / 39,188.60-58,787-12,895.42

Finding the Fourth Proportional to 39,188.60, 58,787 and 12,895.42

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Solution

The fourth proportional to 39,188.60, 58,787 and 12,895.42 is: 19,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.60 : 58,787 = 12,895.42 : x
  2. Step 2: Convert to fraction form
    39,188.60/58,787 = 12,895.42/x
  3. Step 3: Cross multiply
    39,188.60x = 58,787 × 12,895.42
  4. Step 4: Simplify right side
    39,188.60x = 758,083,055.54
  5. Step 5: Solve for x
    x = 758,083,055.54/39,188.60
  6. Step 6: Final answer
    x = 19,344.48

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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.