Home / 39,147.95-58,699.92-12,850.49

Finding the Fourth Proportional to 39,147.95, 58,699.92 and 12,850.49

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Solution

The fourth proportional to 39,147.95, 58,699.92 and 12,850.49 is: 19,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.95 : 58,699.92 = 12,850.49 : x
  2. Step 2: Convert to fraction form
    39,147.95/58,699.92 = 12,850.49/x
  3. Step 3: Cross multiply
    39,147.95x = 58,699.92 × 12,850.49
  4. Step 4: Simplify right side
    39,147.95x = 754,322,734.96
  5. Step 5: Solve for x
    x = 754,322,734.96/39,147.95
  6. Step 6: Final answer
    x = 19,268.51

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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.