Home / 39,745.59-59,581.32-13,431.93

Finding the Fourth Proportional to 39,745.59, 59,581.32 and 13,431.93

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Solution

The fourth proportional to 39,745.59, 59,581.32 and 13,431.93 is: 20,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745.59 : 59,581.32 = 13,431.93 : x
  2. Step 2: Convert to fraction form
    39,745.59/59,581.32 = 13,431.93/x
  3. Step 3: Cross multiply
    39,745.59x = 59,581.32 × 13,431.93
  4. Step 4: Simplify right side
    39,745.59x = 800,292,119.55
  5. Step 5: Solve for x
    x = 800,292,119.55/39,745.59
  6. Step 6: Final answer
    x = 20,135.37

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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.