Home / 20,121.24-27,768.60-11,623.72

Finding the Fourth Proportional to 20,121.24, 27,768.60 and 11,623.72

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Solution

The fourth proportional to 20,121.24, 27,768.60 and 11,623.72 is: 16,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.24 : 27,768.60 = 11,623.72 : x
  2. Step 2: Convert to fraction form
    20,121.24/27,768.60 = 11,623.72/x
  3. Step 3: Cross multiply
    20,121.24x = 27,768.60 × 11,623.72
  4. Step 4: Simplify right side
    20,121.24x = 322,774,264.00
  5. Step 5: Solve for x
    x = 322,774,264.00/20,121.24
  6. Step 6: Final answer
    x = 16,041.47

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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.