Home / 39,153.76-54,032.22-21,249.07

Finding the Fourth Proportional to 39,153.76, 54,032.22 and 21,249.07

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Solution

The fourth proportional to 39,153.76, 54,032.22 and 21,249.07 is: 29,323.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.76 : 54,032.22 = 21,249.07 : x
  2. Step 2: Convert to fraction form
    39,153.76/54,032.22 = 21,249.07/x
  3. Step 3: Cross multiply
    39,153.76x = 54,032.22 × 21,249.07
  4. Step 4: Simplify right side
    39,153.76x = 1,148,134,425.04
  5. Step 5: Solve for x
    x = 1,148,134,425.04/39,153.76
  6. Step 6: Final answer
    x = 29,323.73

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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.