Home / 27,626.00-38,122.57-15,687.72

Finding the Fourth Proportional to 27,626.00, 38,122.57 and 15,687.72

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Solution

The fourth proportional to 27,626.00, 38,122.57 and 15,687.72 is: 21,648.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,626.00 : 38,122.57 = 15,687.72 : x
  2. Step 2: Convert to fraction form
    27,626.00/38,122.57 = 15,687.72/x
  3. Step 3: Cross multiply
    27,626.00x = 38,122.57 × 15,687.72
  4. Step 4: Simplify right side
    27,626.00x = 598,056,164.62
  5. Step 5: Solve for x
    x = 598,056,164.62/27,626.00
  6. Step 6: Final answer
    x = 21,648.31

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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.