Home / 20,395.16-30,608.32-9,871.37

Finding the Fourth Proportional to 20,395.16, 30,608.32 and 9,871.37

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Solution

The fourth proportional to 20,395.16, 30,608.32 and 9,871.37 is: 14,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.16 : 30,608.32 = 9,871.37 : x
  2. Step 2: Convert to fraction form
    20,395.16/30,608.32 = 9,871.37/x
  3. Step 3: Cross multiply
    20,395.16x = 30,608.32 × 9,871.37
  4. Step 4: Simplify right side
    20,395.16x = 302,145,898.76
  5. Step 5: Solve for x
    x = 302,145,898.76/20,395.16
  6. Step 6: Final answer
    x = 14,814.59

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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.