Home / 20,541.25-28,346.91-11,588.71

Finding the Fourth Proportional to 20,541.25, 28,346.91 and 11,588.71

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Solution

The fourth proportional to 20,541.25, 28,346.91 and 11,588.71 is: 15,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.25 : 28,346.91 = 11,588.71 : x
  2. Step 2: Convert to fraction form
    20,541.25/28,346.91 = 11,588.71/x
  3. Step 3: Cross multiply
    20,541.25x = 28,346.91 × 11,588.71
  4. Step 4: Simplify right side
    20,541.25x = 328,504,119.39
  5. Step 5: Solve for x
    x = 328,504,119.39/20,541.25
  6. Step 6: Final answer
    x = 15,992.41

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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.