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Finding the Fourth Proportional to 30,230.70, 45,333.90 and 11,504.31

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Solution

The fourth proportional to 30,230.70, 45,333.90 and 11,504.31 is: 17,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.70 : 45,333.90 = 11,504.31 : x
  2. Step 2: Convert to fraction form
    30,230.70/45,333.90 = 11,504.31/x
  3. Step 3: Cross multiply
    30,230.70x = 45,333.90 × 11,504.31
  4. Step 4: Simplify right side
    30,230.70x = 521,535,239.11
  5. Step 5: Solve for x
    x = 521,535,239.11/30,230.70
  6. Step 6: Final answer
    x = 17,251.84

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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.