Home / 20,021.77-27,632.79-11,523.72

Finding the Fourth Proportional to 20,021.77, 27,632.79 and 11,523.72

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Solution

The fourth proportional to 20,021.77, 27,632.79 and 11,523.72 is: 15,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.77 : 27,632.79 = 11,523.72 : x
  2. Step 2: Convert to fraction form
    20,021.77/27,632.79 = 11,523.72/x
  3. Step 3: Cross multiply
    20,021.77x = 27,632.79 × 11,523.72
  4. Step 4: Simplify right side
    20,021.77x = 318,432,339.00
  5. Step 5: Solve for x
    x = 318,432,339.00/20,021.77
  6. Step 6: Final answer
    x = 15,904.31

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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.