Home / 31,653.36-43,670.88-18,910.44

Finding the Fourth Proportional to 31,653.36, 43,670.88 and 18,910.44

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Solution

The fourth proportional to 31,653.36, 43,670.88 and 18,910.44 is: 26,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,653.36 : 43,670.88 = 18,910.44 : x
  2. Step 2: Convert to fraction form
    31,653.36/43,670.88 = 18,910.44/x
  3. Step 3: Cross multiply
    31,653.36x = 43,670.88 × 18,910.44
  4. Step 4: Simplify right side
    31,653.36x = 825,835,555.99
  5. Step 5: Solve for x
    x = 825,835,555.99/31,653.36
  6. Step 6: Final answer
    x = 26,089.98

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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.