Home / 20,204.51-30,299.27-8,511.35

Finding the Fourth Proportional to 20,204.51, 30,299.27 and 8,511.35

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Solution

The fourth proportional to 20,204.51, 30,299.27 and 8,511.35 is: 12,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.51 : 30,299.27 = 8,511.35 : x
  2. Step 2: Convert to fraction form
    20,204.51/30,299.27 = 8,511.35/x
  3. Step 3: Cross multiply
    20,204.51x = 30,299.27 × 8,511.35
  4. Step 4: Simplify right side
    20,204.51x = 257,887,497.66
  5. Step 5: Solve for x
    x = 257,887,497.66/20,204.51
  6. Step 6: Final answer
    x = 12,763.86

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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.