Home / 23,130.26-31,919.69-12,519.86

Finding the Fourth Proportional to 23,130.26, 31,919.69 and 12,519.86

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Solution

The fourth proportional to 23,130.26, 31,919.69 and 12,519.86 is: 17,277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.26 : 31,919.69 = 12,519.86 : x
  2. Step 2: Convert to fraction form
    23,130.26/31,919.69 = 12,519.86/x
  3. Step 3: Cross multiply
    23,130.26x = 31,919.69 × 12,519.86
  4. Step 4: Simplify right side
    23,130.26x = 399,629,987.44
  5. Step 5: Solve for x
    x = 399,629,987.44/23,130.26
  6. Step 6: Final answer
    x = 17,277.37

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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.