Home / 19,879.96-29,819.91-5,088.88

Finding the Fourth Proportional to 19,879.96, 29,819.91 and 5,088.88

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Solution

The fourth proportional to 19,879.96, 29,819.91 and 5,088.88 is: 7,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.96 : 29,819.91 = 5,088.88 : x
  2. Step 2: Convert to fraction form
    19,879.96/29,819.91 = 5,088.88/x
  3. Step 3: Cross multiply
    19,879.96x = 29,819.91 × 5,088.88
  4. Step 4: Simplify right side
    19,879.96x = 151,749,943.60
  5. Step 5: Solve for x
    x = 151,749,943.60/19,879.96
  6. Step 6: Final answer
    x = 7,633.31

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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.