Home / 22,930.12-31,645.26-12,858.52

Finding the Fourth Proportional to 22,930.12, 31,645.26 and 12,858.52

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Solution

The fourth proportional to 22,930.12, 31,645.26 and 12,858.52 is: 17,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.12 : 31,645.26 = 12,858.52 : x
  2. Step 2: Convert to fraction form
    22,930.12/31,645.26 = 12,858.52/x
  3. Step 3: Cross multiply
    22,930.12x = 31,645.26 × 12,858.52
  4. Step 4: Simplify right side
    22,930.12x = 406,911,208.62
  5. Step 5: Solve for x
    x = 406,911,208.62/22,930.12
  6. Step 6: Final answer
    x = 17,745.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.