Home / 39,151.76-54,029.47-21,246.77

Finding the Fourth Proportional to 39,151.76, 54,029.47 and 21,246.77

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Solution

The fourth proportional to 39,151.76, 54,029.47 and 21,246.77 is: 29,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.76 : 54,029.47 = 21,246.77 : x
  2. Step 2: Convert to fraction form
    39,151.76/54,029.47 = 21,246.77/x
  3. Step 3: Cross multiply
    39,151.76x = 54,029.47 × 21,246.77
  4. Step 4: Simplify right side
    39,151.76x = 1,147,951,692.15
  5. Step 5: Solve for x
    x = 1,147,951,692.15/39,151.76
  6. Step 6: Final answer
    x = 29,320.56

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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.