Home / 23,130.26-31,919.74-12,519.98

Finding the Fourth Proportional to 23,130.26, 31,919.74 and 12,519.98

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Solution

The fourth proportional to 23,130.26, 31,919.74 and 12,519.98 is: 17,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.26 : 31,919.74 = 12,519.98 : x
  2. Step 2: Convert to fraction form
    23,130.26/31,919.74 = 12,519.98/x
  3. Step 3: Cross multiply
    23,130.26x = 31,919.74 × 12,519.98
  4. Step 4: Simplify right side
    23,130.26x = 399,634,506.41
  5. Step 5: Solve for x
    x = 399,634,506.41/23,130.26
  6. Step 6: Final answer
    x = 17,277.56

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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.