Home / 39,183.74-54,073.95-21,278.90

Finding the Fourth Proportional to 39,183.74, 54,073.95 and 21,278.90

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Solution

The fourth proportional to 39,183.74, 54,073.95 and 21,278.90 is: 29,365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,183.74 : 54,073.95 = 21,278.90 : x
  2. Step 2: Convert to fraction form
    39,183.74/54,073.95 = 21,278.90/x
  3. Step 3: Cross multiply
    39,183.74x = 54,073.95 × 21,278.90
  4. Step 4: Simplify right side
    39,183.74x = 1,150,634,174.66
  5. Step 5: Solve for x
    x = 1,150,634,174.66/39,183.74
  6. Step 6: Final answer
    x = 29,365.09

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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.