Home / 20,279.04-27,982.08-11,898.24

Finding the Fourth Proportional to 20,279.04, 27,982.08 and 11,898.24

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Solution

The fourth proportional to 20,279.04, 27,982.08 and 11,898.24 is: 16,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.04 : 27,982.08 = 11,898.24 : x
  2. Step 2: Convert to fraction form
    20,279.04/27,982.08 = 11,898.24/x
  3. Step 3: Cross multiply
    20,279.04x = 27,982.08 × 11,898.24
  4. Step 4: Simplify right side
    20,279.04x = 332,937,503.54
  5. Step 5: Solve for x
    x = 332,937,503.54/20,279.04
  6. Step 6: Final answer
    x = 16,417.81

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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.