Home / 39,039.38-53,874.33-21,134.37

Finding the Fourth Proportional to 39,039.38, 53,874.33 and 21,134.37

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Solution

The fourth proportional to 39,039.38, 53,874.33 and 21,134.37 is: 29,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039.38 : 53,874.33 = 21,134.37 : x
  2. Step 2: Convert to fraction form
    39,039.38/53,874.33 = 21,134.37/x
  3. Step 3: Cross multiply
    39,039.38x = 53,874.33 × 21,134.37
  4. Step 4: Simplify right side
    39,039.38x = 1,138,600,023.72
  5. Step 5: Solve for x
    x = 1,138,600,023.72/39,039.38
  6. Step 6: Final answer
    x = 29,165.42

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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.