Home / 22,211.78-30,652.19-12,140.23

Finding the Fourth Proportional to 22,211.78, 30,652.19 and 12,140.23

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Solution

The fourth proportional to 22,211.78, 30,652.19 and 12,140.23 is: 16,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.78 : 30,652.19 = 12,140.23 : x
  2. Step 2: Convert to fraction form
    22,211.78/30,652.19 = 12,140.23/x
  3. Step 3: Cross multiply
    22,211.78x = 30,652.19 × 12,140.23
  4. Step 4: Simplify right side
    22,211.78x = 372,124,636.60
  5. Step 5: Solve for x
    x = 372,124,636.60/22,211.78
  6. Step 6: Final answer
    x = 16,753.48

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Half scale
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Double scale
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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.