Home / 39,171.45-58,739.73-12,512.53

Finding the Fourth Proportional to 39,171.45, 58,739.73 and 12,512.53

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Solution

The fourth proportional to 39,171.45, 58,739.73 and 12,512.53 is: 18,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.45 : 58,739.73 = 12,512.53 : x
  2. Step 2: Convert to fraction form
    39,171.45/58,739.73 = 12,512.53/x
  3. Step 3: Cross multiply
    39,171.45x = 58,739.73 × 12,512.53
  4. Step 4: Simplify right side
    39,171.45x = 734,982,633.82
  5. Step 5: Solve for x
    x = 734,982,633.82/39,171.45
  6. Step 6: Final answer
    x = 18,763.22

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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.