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Finding the Fourth Proportional to 30,819.52, 46,157.28 and 15,186.88

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Solution

The fourth proportional to 30,819.52, 46,157.28 and 15,186.88 is: 22,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.52 : 46,157.28 = 15,186.88 : x
  2. Step 2: Convert to fraction form
    30,819.52/46,157.28 = 15,186.88/x
  3. Step 3: Cross multiply
    30,819.52x = 46,157.28 × 15,186.88
  4. Step 4: Simplify right side
    30,819.52x = 700,985,072.49
  5. Step 5: Solve for x
    x = 700,985,072.49/30,819.52
  6. Step 6: Final answer
    x = 22,744.84

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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.