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Finding the Fourth Proportional to 30,468.64, 45,702.96 and 10,736.80

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Solution

The fourth proportional to 30,468.64, 45,702.96 and 10,736.80 is: 16,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.64 : 45,702.96 = 10,736.80 : x
  2. Step 2: Convert to fraction form
    30,468.64/45,702.96 = 10,736.80/x
  3. Step 3: Cross multiply
    30,468.64x = 45,702.96 × 10,736.80
  4. Step 4: Simplify right side
    30,468.64x = 490,703,540.93
  5. Step 5: Solve for x
    x = 490,703,540.93/30,468.64
  6. Step 6: Final answer
    x = 16,105.20

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1.5x scale

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.