Home / 23,129.75-31,919.00-12,519.36

Finding the Fourth Proportional to 23,129.75, 31,919.00 and 12,519.36

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Solution

The fourth proportional to 23,129.75, 31,919.00 and 12,519.36 is: 17,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.75 : 31,919.00 = 12,519.36 : x
  2. Step 2: Convert to fraction form
    23,129.75/31,919.00 = 12,519.36/x
  3. Step 3: Cross multiply
    23,129.75x = 31,919.00 × 12,519.36
  4. Step 4: Simplify right side
    23,129.75x = 399,605,389.24
  5. Step 5: Solve for x
    x = 399,605,389.24/23,129.75
  6. Step 6: Final answer
    x = 17,276.68

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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.