Home / 31,890.48-47,833.79-11,896.13

Finding the Fourth Proportional to 31,890.48, 47,833.79 and 11,896.13

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Solution

The fourth proportional to 31,890.48, 47,833.79 and 11,896.13 is: 17,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.48 : 47,833.79 = 11,896.13 : x
  2. Step 2: Convert to fraction form
    31,890.48/47,833.79 = 11,896.13/x
  3. Step 3: Cross multiply
    31,890.48x = 47,833.79 × 11,896.13
  4. Step 4: Simplify right side
    31,890.48x = 569,036,685.58
  5. Step 5: Solve for x
    x = 569,036,685.58/31,890.48
  6. Step 6: Final answer
    x = 17,843.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.