Home / 19,217.10-28,634.61-17,121

Finding the Fourth Proportional to 19,217.10, 28,634.61 and 17,121

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Solution

The fourth proportional to 19,217.10, 28,634.61 and 17,121 is: 25,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.10 : 28,634.61 = 17,121 : x
  2. Step 2: Convert to fraction form
    19,217.10/28,634.61 = 17,121/x
  3. Step 3: Cross multiply
    19,217.10x = 28,634.61 × 17,121
  4. Step 4: Simplify right side
    19,217.10x = 490,253,157.81
  5. Step 5: Solve for x
    x = 490,253,157.81/19,217.10
  6. Step 6: Final answer
    x = 25,511.30

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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.