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Finding the Fourth Proportional to 17,911.92, 24,720.12 and 10,840.08

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Solution

The fourth proportional to 17,911.92, 24,720.12 and 10,840.08 is: 14,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.92 : 24,720.12 = 10,840.08 : x
  2. Step 2: Convert to fraction form
    17,911.92/24,720.12 = 10,840.08/x
  3. Step 3: Cross multiply
    17,911.92x = 24,720.12 × 10,840.08
  4. Step 4: Simplify right side
    17,911.92x = 267,968,078.41
  5. Step 5: Solve for x
    x = 267,968,078.41/17,911.92
  6. Step 6: Final answer
    x = 14,960.32

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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.