Home / 19,218.10-28,636.10-17,122

Finding the Fourth Proportional to 19,218.10, 28,636.10 and 17,122

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Solution

The fourth proportional to 19,218.10, 28,636.10 and 17,122 is: 25,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.10 : 28,636.10 = 17,122 : x
  2. Step 2: Convert to fraction form
    19,218.10/28,636.10 = 17,122/x
  3. Step 3: Cross multiply
    19,218.10x = 28,636.10 × 17,122
  4. Step 4: Simplify right side
    19,218.10x = 490,307,304.20
  5. Step 5: Solve for x
    x = 490,307,304.20/19,218.10
  6. Step 6: Final answer
    x = 25,512.79

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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.