Home / 39,588.75-54,633.38-21,683.61

Finding the Fourth Proportional to 39,588.75, 54,633.38 and 21,683.61

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Solution

The fourth proportional to 39,588.75, 54,633.38 and 21,683.61 is: 29,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,588.75 : 54,633.38 = 21,683.61 : x
  2. Step 2: Convert to fraction form
    39,588.75/54,633.38 = 21,683.61/x
  3. Step 3: Cross multiply
    39,588.75x = 54,633.38 × 21,683.61
  4. Step 4: Simplify right side
    39,588.75x = 1,184,648,796.48
  5. Step 5: Solve for x
    x = 1,184,648,796.48/39,588.75
  6. Step 6: Final answer
    x = 29,923.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.