Home / 30,449.46-45,664.97-11,728.05

Finding the Fourth Proportional to 30,449.46, 45,664.97 and 11,728.05

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Solution

The fourth proportional to 30,449.46, 45,664.97 and 11,728.05 is: 17,588.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.46 : 45,664.97 = 11,728.05 : x
  2. Step 2: Convert to fraction form
    30,449.46/45,664.97 = 11,728.05/x
  3. Step 3: Cross multiply
    30,449.46x = 45,664.97 × 11,728.05
  4. Step 4: Simplify right side
    30,449.46x = 535,560,992.77
  5. Step 5: Solve for x
    x = 535,560,992.77/30,449.46
  6. Step 6: Final answer
    x = 17,588.52

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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.