Home / 30,046.36-45,074.40-12,517.96

Finding the Fourth Proportional to 30,046.36, 45,074.40 and 12,517.96

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Solution

The fourth proportional to 30,046.36, 45,074.40 and 12,517.96 is: 18,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,046.36 : 45,074.40 = 12,517.96 : x
  2. Step 2: Convert to fraction form
    30,046.36/45,074.40 = 12,517.96/x
  3. Step 3: Cross multiply
    30,046.36x = 45,074.40 × 12,517.96
  4. Step 4: Simplify right side
    30,046.36x = 564,239,536.22
  5. Step 5: Solve for x
    x = 564,239,536.22/30,046.36
  6. Step 6: Final answer
    x = 18,778.96

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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.