Home / 31,618.26-47,421.92-11,896.99

Finding the Fourth Proportional to 31,618.26, 47,421.92 and 11,896.99

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Solution

The fourth proportional to 31,618.26, 47,421.92 and 11,896.99 is: 17,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.26 : 47,421.92 = 11,896.99 : x
  2. Step 2: Convert to fraction form
    31,618.26/47,421.92 = 11,896.99/x
  3. Step 3: Cross multiply
    31,618.26x = 47,421.92 × 11,896.99
  4. Step 4: Simplify right side
    31,618.26x = 564,177,870.91
  5. Step 5: Solve for x
    x = 564,177,870.91/31,618.26
  6. Step 6: Final answer
    x = 17,843.42

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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.