Home / 20,204.08-30,285.06-11,877.28

Finding the Fourth Proportional to 20,204.08, 30,285.06 and 11,877.28

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Solution

The fourth proportional to 20,204.08, 30,285.06 and 11,877.28 is: 17,803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.08 : 30,285.06 = 11,877.28 : x
  2. Step 2: Convert to fraction form
    20,204.08/30,285.06 = 11,877.28/x
  3. Step 3: Cross multiply
    20,204.08x = 30,285.06 × 11,877.28
  4. Step 4: Simplify right side
    20,204.08x = 359,704,137.44
  5. Step 5: Solve for x
    x = 359,704,137.44/20,204.08
  6. Step 6: Final answer
    x = 17,803.54

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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.