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Finding the Fourth Proportional to 17,980.78, 24,812.90 and 11,270.03

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Solution

The fourth proportional to 17,980.78, 24,812.90 and 11,270.03 is: 15,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.78 : 24,812.90 = 11,270.03 : x
  2. Step 2: Convert to fraction form
    17,980.78/24,812.90 = 11,270.03/x
  3. Step 3: Cross multiply
    17,980.78x = 24,812.90 × 11,270.03
  4. Step 4: Simplify right side
    17,980.78x = 279,641,946.97
  5. Step 5: Solve for x
    x = 279,641,946.97/17,980.78
  6. Step 6: Final answer
    x = 15,552.27

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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.