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Finding the Fourth Proportional to 30,115.52, 45,200.84 and 15,334.64

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Solution

The fourth proportional to 30,115.52, 45,200.84 and 15,334.64 is: 23,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.52 : 45,200.84 = 15,334.64 : x
  2. Step 2: Convert to fraction form
    30,115.52/45,200.84 = 15,334.64/x
  3. Step 3: Cross multiply
    30,115.52x = 45,200.84 × 15,334.64
  4. Step 4: Simplify right side
    30,115.52x = 693,138,609.10
  5. Step 5: Solve for x
    x = 693,138,609.10/30,115.52
  6. Step 6: Final answer
    x = 23,015.99

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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.