Home / 22,199.67-30,635.96-12,128.54

Finding the Fourth Proportional to 22,199.67, 30,635.96 and 12,128.54

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Solution

The fourth proportional to 22,199.67, 30,635.96 and 12,128.54 is: 16,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.67 : 30,635.96 = 12,128.54 : x
  2. Step 2: Convert to fraction form
    22,199.67/30,635.96 = 12,128.54/x
  3. Step 3: Cross multiply
    22,199.67x = 30,635.96 × 12,128.54
  4. Step 4: Simplify right side
    22,199.67x = 371,569,252.48
  5. Step 5: Solve for x
    x = 371,569,252.48/22,199.67
  6. Step 6: Final answer
    x = 16,737.60

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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.