Home / 22,211.82-30,652.44-12,140.28

Finding the Fourth Proportional to 22,211.82, 30,652.44 and 12,140.28

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Solution

The fourth proportional to 22,211.82, 30,652.44 and 12,140.28 is: 16,753.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.82 : 30,652.44 = 12,140.28 : x
  2. Step 2: Convert to fraction form
    22,211.82/30,652.44 = 12,140.28/x
  3. Step 3: Cross multiply
    22,211.82x = 30,652.44 × 12,140.28
  4. Step 4: Simplify right side
    22,211.82x = 372,129,204.28
  5. Step 5: Solve for x
    x = 372,129,204.28/22,211.82
  6. Step 6: Final answer
    x = 16,753.66

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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.