Home / 19,270.80-28,910.43-12,225.96

Finding the Fourth Proportional to 19,270.80, 28,910.43 and 12,225.96

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Solution

The fourth proportional to 19,270.80, 28,910.43 and 12,225.96 is: 18,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.80 : 28,910.43 = 12,225.96 : x
  2. Step 2: Convert to fraction form
    19,270.80/28,910.43 = 12,225.96/x
  3. Step 3: Cross multiply
    19,270.80x = 28,910.43 × 12,225.96
  4. Step 4: Simplify right side
    19,270.80x = 353,457,760.76
  5. Step 5: Solve for x
    x = 353,457,760.76/19,270.80
  6. Step 6: Final answer
    x = 18,341.62

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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.