Home / 20,108.10-27,748.80-11,033.50

Finding the Fourth Proportional to 20,108.10, 27,748.80 and 11,033.50

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Solution

The fourth proportional to 20,108.10, 27,748.80 and 11,033.50 is: 15,226.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.10 : 27,748.80 = 11,033.50 : x
  2. Step 2: Convert to fraction form
    20,108.10/27,748.80 = 11,033.50/x
  3. Step 3: Cross multiply
    20,108.10x = 27,748.80 × 11,033.50
  4. Step 4: Simplify right side
    20,108.10x = 306,166,384.80
  5. Step 5: Solve for x
    x = 306,166,384.80/20,108.10
  6. Step 6: Final answer
    x = 15,226.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.