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Finding the Fourth Proportional to 30,239.39, 45,359.09 and 8,051.67

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Solution

The fourth proportional to 30,239.39, 45,359.09 and 8,051.67 is: 12,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.39 : 45,359.09 = 8,051.67 : x
  2. Step 2: Convert to fraction form
    30,239.39/45,359.09 = 8,051.67/x
  3. Step 3: Cross multiply
    30,239.39x = 45,359.09 × 8,051.67
  4. Step 4: Simplify right side
    30,239.39x = 365,216,414.12
  5. Step 5: Solve for x
    x = 365,216,414.12/30,239.39
  6. Step 6: Final answer
    x = 12,077.51

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Half scale
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Double scale
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Similar ratio
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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.