Home / 39,238.72-54,150.50-21,334.93

Finding the Fourth Proportional to 39,238.72, 54,150.50 and 21,334.93

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Solution

The fourth proportional to 39,238.72, 54,150.50 and 21,334.93 is: 29,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,238.72 : 54,150.50 = 21,334.93 : x
  2. Step 2: Convert to fraction form
    39,238.72/54,150.50 = 21,334.93/x
  3. Step 3: Cross multiply
    39,238.72x = 54,150.50 × 21,334.93
  4. Step 4: Simplify right side
    39,238.72x = 1,155,297,126.97
  5. Step 5: Solve for x
    x = 1,155,297,126.97/39,238.72
  6. Step 6: Final answer
    x = 29,442.78

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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.