Home / 39,239.82-54,149.76-21,334.86

Finding the Fourth Proportional to 39,239.82, 54,149.76 and 21,334.86

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Solution

The fourth proportional to 39,239.82, 54,149.76 and 21,334.86 is: 29,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.82 : 54,149.76 = 21,334.86 : x
  2. Step 2: Convert to fraction form
    39,239.82/54,149.76 = 21,334.86/x
  3. Step 3: Cross multiply
    39,239.82x = 54,149.76 × 21,334.86
  4. Step 4: Simplify right side
    39,239.82x = 1,155,277,548.63
  5. Step 5: Solve for x
    x = 1,155,277,548.63/39,239.82
  6. Step 6: Final answer
    x = 29,441.46

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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.