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Finding the Fourth Proportional to 30,086.96, 45,137.72 and 9,026.96

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Solution

The fourth proportional to 30,086.96, 45,137.72 and 9,026.96 is: 13,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.96 : 45,137.72 = 9,026.96 : x
  2. Step 2: Convert to fraction form
    30,086.96/45,137.72 = 9,026.96/x
  3. Step 3: Cross multiply
    30,086.96x = 45,137.72 × 9,026.96
  4. Step 4: Simplify right side
    30,086.96x = 407,456,189.81
  5. Step 5: Solve for x
    x = 407,456,189.81/30,086.96
  6. Step 6: Final answer
    x = 13,542.62

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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.