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Finding the Fourth Proportional to 30,076.46, 45,079.79 and 11,344.49

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Solution

The fourth proportional to 30,076.46, 45,079.79 and 11,344.49 is: 17,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.46 : 45,079.79 = 11,344.49 : x
  2. Step 2: Convert to fraction form
    30,076.46/45,079.79 = 11,344.49/x
  3. Step 3: Cross multiply
    30,076.46x = 45,079.79 × 11,344.49
  4. Step 4: Simplify right side
    30,076.46x = 511,406,944.74
  5. Step 5: Solve for x
    x = 511,406,944.74/30,076.46
  6. Step 6: Final answer
    x = 17,003.56

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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.