Home / 20,098.43-30,145.48-8,253.45

Finding the Fourth Proportional to 20,098.43, 30,145.48 and 8,253.45

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Solution

The fourth proportional to 20,098.43, 30,145.48 and 8,253.45 is: 12,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,098.43 : 30,145.48 = 8,253.45 : x
  2. Step 2: Convert to fraction form
    20,098.43/30,145.48 = 8,253.45/x
  3. Step 3: Cross multiply
    20,098.43x = 30,145.48 × 8,253.45
  4. Step 4: Simplify right side
    20,098.43x = 248,804,211.91
  5. Step 5: Solve for x
    x = 248,804,211.91/20,098.43
  6. Step 6: Final answer
    x = 12,379.29

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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.