Home / 39,153.87-54,032.73-21,249.03

Finding the Fourth Proportional to 39,153.87, 54,032.73 and 21,249.03

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Solution

The fourth proportional to 39,153.87, 54,032.73 and 21,249.03 is: 29,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.87 : 54,032.73 = 21,249.03 : x
  2. Step 2: Convert to fraction form
    39,153.87/54,032.73 = 21,249.03/x
  3. Step 3: Cross multiply
    39,153.87x = 54,032.73 × 21,249.03
  4. Step 4: Simplify right side
    39,153.87x = 1,148,143,100.75
  5. Step 5: Solve for x
    x = 1,148,143,100.75/39,153.87
  6. Step 6: Final answer
    x = 29,323.87

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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.