Home / 23,130.06-31,919.36-12,519.68

Finding the Fourth Proportional to 23,130.06, 31,919.36 and 12,519.68

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Solution

The fourth proportional to 23,130.06, 31,919.36 and 12,519.68 is: 17,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.06 : 31,919.36 = 12,519.68 : x
  2. Step 2: Convert to fraction form
    23,130.06/31,919.36 = 12,519.68/x
  3. Step 3: Cross multiply
    23,130.06x = 31,919.36 × 12,519.68
  4. Step 4: Simplify right side
    23,130.06x = 399,620,173.00
  5. Step 5: Solve for x
    x = 399,620,173.00/23,130.06
  6. Step 6: Final answer
    x = 17,277.09

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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.