Home / 39,632.45-54,692.16-21,727.61

Finding the Fourth Proportional to 39,632.45, 54,692.16 and 21,727.61

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Solution

The fourth proportional to 39,632.45, 54,692.16 and 21,727.61 is: 29,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,632.45 : 54,692.16 = 21,727.61 : x
  2. Step 2: Convert to fraction form
    39,632.45/54,692.16 = 21,727.61/x
  3. Step 3: Cross multiply
    39,632.45x = 54,692.16 × 21,727.61
  4. Step 4: Simplify right side
    39,632.45x = 1,188,329,649.08
  5. Step 5: Solve for x
    x = 1,188,329,649.08/39,632.45
  6. Step 6: Final answer
    x = 29,983.75

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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.