Home / 19,910.30-29,865.44-5,119.22

Finding the Fourth Proportional to 19,910.30, 29,865.44 and 5,119.22

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Solution

The fourth proportional to 19,910.30, 29,865.44 and 5,119.22 is: 7,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.30 : 29,865.44 = 5,119.22 : x
  2. Step 2: Convert to fraction form
    19,910.30/29,865.44 = 5,119.22/x
  3. Step 3: Cross multiply
    19,910.30x = 29,865.44 × 5,119.22
  4. Step 4: Simplify right side
    19,910.30x = 152,887,845.22
  5. Step 5: Solve for x
    x = 152,887,845.22/19,910.30
  6. Step 6: Final answer
    x = 7,678.83

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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.