Home / 30,418.88-45,590.64-17,231.28

Finding the Fourth Proportional to 30,418.88, 45,590.64 and 17,231.28

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Solution

The fourth proportional to 30,418.88, 45,590.64 and 17,231.28 is: 25,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.88 : 45,590.64 = 17,231.28 : x
  2. Step 2: Convert to fraction form
    30,418.88/45,590.64 = 17,231.28/x
  3. Step 3: Cross multiply
    30,418.88x = 45,590.64 × 17,231.28
  4. Step 4: Simplify right side
    30,418.88x = 785,585,083.22
  5. Step 5: Solve for x
    x = 785,585,083.22/30,418.88
  6. Step 6: Final answer
    x = 25,825.58

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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.