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Finding the Fourth Proportional to 30,481.77, 42,041.58 and 26,239.80

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Solution

The fourth proportional to 30,481.77, 42,041.58 and 26,239.80 is: 36,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.77 : 42,041.58 = 26,239.80 : x
  2. Step 2: Convert to fraction form
    30,481.77/42,041.58 = 26,239.80/x
  3. Step 3: Cross multiply
    30,481.77x = 42,041.58 × 26,239.80
  4. Step 4: Simplify right side
    30,481.77x = 1,103,162,650.88
  5. Step 5: Solve for x
    x = 1,103,162,650.88/30,481.77
  6. Step 6: Final answer
    x = 36,190.90

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.