Home / 19,611.03-27,085.25-15,188.27

Finding the Fourth Proportional to 19,611.03, 27,085.25 and 15,188.27

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Solution

The fourth proportional to 19,611.03, 27,085.25 and 15,188.27 is: 20,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.03 : 27,085.25 = 15,188.27 : x
  2. Step 2: Convert to fraction form
    19,611.03/27,085.25 = 15,188.27/x
  3. Step 3: Cross multiply
    19,611.03x = 27,085.25 × 15,188.27
  4. Step 4: Simplify right side
    19,611.03x = 411,378,090.02
  5. Step 5: Solve for x
    x = 411,378,090.02/19,611.03
  6. Step 6: Final answer
    x = 20,976.87

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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.