Home / 28,105.61-38,787.46-16,168.66

Finding the Fourth Proportional to 28,105.61, 38,787.46 and 16,168.66

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Solution

The fourth proportional to 28,105.61, 38,787.46 and 16,168.66 is: 22,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.61 : 38,787.46 = 16,168.66 : x
  2. Step 2: Convert to fraction form
    28,105.61/38,787.46 = 16,168.66/x
  3. Step 3: Cross multiply
    28,105.61x = 38,787.46 × 16,168.66
  4. Step 4: Simplify right side
    28,105.61x = 627,141,115.61
  5. Step 5: Solve for x
    x = 627,141,115.61/28,105.61
  6. Step 6: Final answer
    x = 22,313.74

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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.