Home / 39,632.42-54,692.12-21,727.55

Finding the Fourth Proportional to 39,632.42, 54,692.12 and 21,727.55

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Solution

The fourth proportional to 39,632.42, 54,692.12 and 21,727.55 is: 29,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,632.42 : 54,692.12 = 21,727.55 : x
  2. Step 2: Convert to fraction form
    39,632.42/54,692.12 = 21,727.55/x
  3. Step 3: Cross multiply
    39,632.42x = 54,692.12 × 21,727.55
  4. Step 4: Simplify right side
    39,632.42x = 1,188,325,840.74
  5. Step 5: Solve for x
    x = 1,188,325,840.74/39,632.42
  6. Step 6: Final answer
    x = 29,983.68

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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.