Home / 31,238.04-43,085.94-19,896.36

Finding the Fourth Proportional to 31,238.04, 43,085.94 and 19,896.36

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Solution

The fourth proportional to 31,238.04, 43,085.94 and 19,896.36 is: 27,442.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.04 : 43,085.94 = 19,896.36 : x
  2. Step 2: Convert to fraction form
    31,238.04/43,085.94 = 19,896.36/x
  3. Step 3: Cross multiply
    31,238.04x = 43,085.94 × 19,896.36
  4. Step 4: Simplify right side
    31,238.04x = 857,253,373.18
  5. Step 5: Solve for x
    x = 857,253,373.18/31,238.04
  6. Step 6: Final answer
    x = 27,442.61

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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.