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Finding the Fourth Proportional to 30,550.82, 45,800.10 and 13,904.91

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Solution

The fourth proportional to 30,550.82, 45,800.10 and 13,904.91 is: 20,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,550.82 : 45,800.10 = 13,904.91 : x
  2. Step 2: Convert to fraction form
    30,550.82/45,800.10 = 13,904.91/x
  3. Step 3: Cross multiply
    30,550.82x = 45,800.10 × 13,904.91
  4. Step 4: Simplify right side
    30,550.82x = 636,846,268.49
  5. Step 5: Solve for x
    x = 636,846,268.49/30,550.82
  6. Step 6: Final answer
    x = 20,845.48

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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.