Home / 17,611.20-26,313.60-16,998.72

Finding the Fourth Proportional to 17,611.20, 26,313.60 and 16,998.72

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Solution

The fourth proportional to 17,611.20, 26,313.60 and 16,998.72 is: 25,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.20 : 26,313.60 = 16,998.72 : x
  2. Step 2: Convert to fraction form
    17,611.20/26,313.60 = 16,998.72/x
  3. Step 3: Cross multiply
    17,611.20x = 26,313.60 × 16,998.72
  4. Step 4: Simplify right side
    17,611.20x = 447,297,518.59
  5. Step 5: Solve for x
    x = 447,297,518.59/17,611.20
  6. Step 6: Final answer
    x = 25,398.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.