Home / 31,187.21-43,053.89-19,257.12

Finding the Fourth Proportional to 31,187.21, 43,053.89 and 19,257.12

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Solution

The fourth proportional to 31,187.21, 43,053.89 and 19,257.12 is: 26,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.21 : 43,053.89 = 19,257.12 : x
  2. Step 2: Convert to fraction form
    31,187.21/43,053.89 = 19,257.12/x
  3. Step 3: Cross multiply
    31,187.21x = 43,053.89 × 19,257.12
  4. Step 4: Simplify right side
    31,187.21x = 829,093,829.91
  5. Step 5: Solve for x
    x = 829,093,829.91/31,187.21
  6. Step 6: Final answer
    x = 26,584.42

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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.