Home / 20,285.20-27,992.24-11,332.26

Finding the Fourth Proportional to 20,285.20, 27,992.24 and 11,332.26

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Solution

The fourth proportional to 20,285.20, 27,992.24 and 11,332.26 is: 15,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.20 : 27,992.24 = 11,332.26 : x
  2. Step 2: Convert to fraction form
    20,285.20/27,992.24 = 11,332.26/x
  3. Step 3: Cross multiply
    20,285.20x = 27,992.24 × 11,332.26
  4. Step 4: Simplify right side
    20,285.20x = 317,215,341.66
  5. Step 5: Solve for x
    x = 317,215,341.66/20,285.20
  6. Step 6: Final answer
    x = 15,637.77

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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.