Home / 20,541.24-28,346.92-11,588.72

Finding the Fourth Proportional to 20,541.24, 28,346.92 and 11,588.72

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Solution

The fourth proportional to 20,541.24, 28,346.92 and 11,588.72 is: 15,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.24 : 28,346.92 = 11,588.72 : x
  2. Step 2: Convert to fraction form
    20,541.24/28,346.92 = 11,588.72/x
  3. Step 3: Cross multiply
    20,541.24x = 28,346.92 × 11,588.72
  4. Step 4: Simplify right side
    20,541.24x = 328,504,518.74
  5. Step 5: Solve for x
    x = 328,504,518.74/20,541.24
  6. Step 6: Final answer
    x = 15,992.44

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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.