Home / 19,270.62-28,905.27-8,170.16

Finding the Fourth Proportional to 19,270.62, 28,905.27 and 8,170.16

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Solution

The fourth proportional to 19,270.62, 28,905.27 and 8,170.16 is: 12,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.62 : 28,905.27 = 8,170.16 : x
  2. Step 2: Convert to fraction form
    19,270.62/28,905.27 = 8,170.16/x
  3. Step 3: Cross multiply
    19,270.62x = 28,905.27 × 8,170.16
  4. Step 4: Simplify right side
    19,270.62x = 236,160,680.74
  5. Step 5: Solve for x
    x = 236,160,680.74/19,270.62
  6. Step 6: Final answer
    x = 12,254.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.