Home / 19,879.16-29,818.43-5,087.95

Finding the Fourth Proportional to 19,879.16, 29,818.43 and 5,087.95

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Solution

The fourth proportional to 19,879.16, 29,818.43 and 5,087.95 is: 7,631.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.16 : 29,818.43 = 5,087.95 : x
  2. Step 2: Convert to fraction form
    19,879.16/29,818.43 = 5,087.95/x
  3. Step 3: Cross multiply
    19,879.16x = 29,818.43 × 5,087.95
  4. Step 4: Simplify right side
    19,879.16x = 151,714,600.01
  5. Step 5: Solve for x
    x = 151,714,600.01/19,879.16
  6. Step 6: Final answer
    x = 7,631.84

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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.