Home / 20,066.57-27,692.86-12,108.66

Finding the Fourth Proportional to 20,066.57, 27,692.86 and 12,108.66

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Solution

The fourth proportional to 20,066.57, 27,692.86 and 12,108.66 is: 16,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.57 : 27,692.86 = 12,108.66 : x
  2. Step 2: Convert to fraction form
    20,066.57/27,692.86 = 12,108.66/x
  3. Step 3: Cross multiply
    20,066.57x = 27,692.86 × 12,108.66
  4. Step 4: Simplify right side
    20,066.57x = 335,323,426.17
  5. Step 5: Solve for x
    x = 335,323,426.17/20,066.57
  6. Step 6: Final answer
    x = 16,710.55

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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.