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Finding the Fourth Proportional to 30,486.32, 45,733.24 and 10,760.88

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Solution

The fourth proportional to 30,486.32, 45,733.24 and 10,760.88 is: 16,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.32 : 45,733.24 = 10,760.88 : x
  2. Step 2: Convert to fraction form
    30,486.32/45,733.24 = 10,760.88/x
  3. Step 3: Cross multiply
    30,486.32x = 45,733.24 × 10,760.88
  4. Step 4: Simplify right side
    30,486.32x = 492,129,907.65
  5. Step 5: Solve for x
    x = 492,129,907.65/30,486.32
  6. Step 6: Final answer
    x = 16,142.65

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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.