Home / 31,262.64-43,142.44-17,115.52

Finding the Fourth Proportional to 31,262.64, 43,142.44 and 17,115.52

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Solution

The fourth proportional to 31,262.64, 43,142.44 and 17,115.52 is: 23,619.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,262.64 : 43,142.44 = 17,115.52 : x
  2. Step 2: Convert to fraction form
    31,262.64/43,142.44 = 17,115.52/x
  3. Step 3: Cross multiply
    31,262.64x = 43,142.44 × 17,115.52
  4. Step 4: Simplify right side
    31,262.64x = 738,405,294.67
  5. Step 5: Solve for x
    x = 738,405,294.67/31,262.64
  6. Step 6: Final answer
    x = 23,619.42

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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.