Home / 22,310.56-33,420.28-12,455.09

Finding the Fourth Proportional to 22,310.56, 33,420.28 and 12,455.09

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Solution

The fourth proportional to 22,310.56, 33,420.28 and 12,455.09 is: 18,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.56 : 33,420.28 = 12,455.09 : x
  2. Step 2: Convert to fraction form
    22,310.56/33,420.28 = 12,455.09/x
  3. Step 3: Cross multiply
    22,310.56x = 33,420.28 × 12,455.09
  4. Step 4: Simplify right side
    22,310.56x = 416,252,595.23
  5. Step 5: Solve for x
    x = 416,252,595.23/22,310.56
  6. Step 6: Final answer
    x = 18,657.20

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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.