Home / 20,560.77-30,896.64-11,207.70

Finding the Fourth Proportional to 20,560.77, 30,896.64 and 11,207.70

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Solution

The fourth proportional to 20,560.77, 30,896.64 and 11,207.70 is: 16,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.77 : 30,896.64 = 11,207.70 : x
  2. Step 2: Convert to fraction form
    20,560.77/30,896.64 = 11,207.70/x
  3. Step 3: Cross multiply
    20,560.77x = 30,896.64 × 11,207.70
  4. Step 4: Simplify right side
    20,560.77x = 346,280,272.13
  5. Step 5: Solve for x
    x = 346,280,272.13/20,560.77
  6. Step 6: Final answer
    x = 16,841.79

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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.