Home / 30,213.54-45,340.97-10,491.93

Finding the Fourth Proportional to 30,213.54, 45,340.97 and 10,491.93

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Solution

The fourth proportional to 30,213.54, 45,340.97 and 10,491.93 is: 15,745.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.54 : 45,340.97 = 10,491.93 : x
  2. Step 2: Convert to fraction form
    30,213.54/45,340.97 = 10,491.93/x
  3. Step 3: Cross multiply
    30,213.54x = 45,340.97 × 10,491.93
  4. Step 4: Simplify right side
    30,213.54x = 475,714,230.91
  5. Step 5: Solve for x
    x = 475,714,230.91/30,213.54
  6. Step 6: Final answer
    x = 15,745.07

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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.