Home / 39,081.55-58,627.79-12,781.05

Finding the Fourth Proportional to 39,081.55, 58,627.79 and 12,781.05

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Solution

The fourth proportional to 39,081.55, 58,627.79 and 12,781.05 is: 19,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.55 : 58,627.79 = 12,781.05 : x
  2. Step 2: Convert to fraction form
    39,081.55/58,627.79 = 12,781.05/x
  3. Step 3: Cross multiply
    39,081.55x = 58,627.79 × 12,781.05
  4. Step 4: Simplify right side
    39,081.55x = 749,324,651.47
  5. Step 5: Solve for x
    x = 749,324,651.47/39,081.55
  6. Step 6: Final answer
    x = 19,173.36

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1.5x scale

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.