Home / 39,217.59-58,778.19-18,129.11

Finding the Fourth Proportional to 39,217.59, 58,778.19 and 18,129.11

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Solution

The fourth proportional to 39,217.59, 58,778.19 and 18,129.11 is: 27,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,217.59 : 58,778.19 = 18,129.11 : x
  2. Step 2: Convert to fraction form
    39,217.59/58,778.19 = 18,129.11/x
  3. Step 3: Cross multiply
    39,217.59x = 58,778.19 × 18,129.11
  4. Step 4: Simplify right side
    39,217.59x = 1,065,595,978.22
  5. Step 5: Solve for x
    x = 1,065,595,978.22/39,217.59
  6. Step 6: Final answer
    x = 27,171.38

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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.