Home / 56,018.08-84,035.31-20,481.13

Finding the Fourth Proportional to 56,018.08, 84,035.31 and 20,481.13

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Solution

The fourth proportional to 56,018.08, 84,035.31 and 20,481.13 is: 30,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,018.08 : 84,035.31 = 20,481.13 : x
  2. Step 2: Convert to fraction form
    56,018.08/84,035.31 = 20,481.13/x
  3. Step 3: Cross multiply
    56,018.08x = 84,035.31 × 20,481.13
  4. Step 4: Simplify right side
    56,018.08x = 1,721,138,108.70
  5. Step 5: Solve for x
    x = 1,721,138,108.70/56,018.08
  6. Step 6: Final answer
    x = 30,724.69

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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.