Home / 23,179.05-31,987.62-13,625.91

Finding the Fourth Proportional to 23,179.05, 31,987.62 and 13,625.91

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Solution

The fourth proportional to 23,179.05, 31,987.62 and 13,625.91 is: 18,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.05 : 31,987.62 = 13,625.91 : x
  2. Step 2: Convert to fraction form
    23,179.05/31,987.62 = 13,625.91/x
  3. Step 3: Cross multiply
    23,179.05x = 31,987.62 × 13,625.91
  4. Step 4: Simplify right side
    23,179.05x = 435,860,431.23
  5. Step 5: Solve for x
    x = 435,860,431.23/23,179.05
  6. Step 6: Final answer
    x = 18,804.07

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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.