Home / 23,165.36-31,968.26-12,555

Finding the Fourth Proportional to 23,165.36, 31,968.26 and 12,555

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Solution

The fourth proportional to 23,165.36, 31,968.26 and 12,555 is: 17,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.36 : 31,968.26 = 12,555 : x
  2. Step 2: Convert to fraction form
    23,165.36/31,968.26 = 12,555/x
  3. Step 3: Cross multiply
    23,165.36x = 31,968.26 × 12,555
  4. Step 4: Simplify right side
    23,165.36x = 401,361,504.30
  5. Step 5: Solve for x
    x = 401,361,504.30/23,165.36
  6. Step 6: Final answer
    x = 17,325.93

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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.