Home / 20,279.04-27,982.32-11,325.42

Finding the Fourth Proportional to 20,279.04, 27,982.32 and 11,325.42

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Solution

The fourth proportional to 20,279.04, 27,982.32 and 11,325.42 is: 15,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.04 : 27,982.32 = 11,325.42 : x
  2. Step 2: Convert to fraction form
    20,279.04/27,982.32 = 11,325.42/x
  3. Step 3: Cross multiply
    20,279.04x = 27,982.32 × 11,325.42
  4. Step 4: Simplify right side
    20,279.04x = 316,911,526.57
  5. Step 5: Solve for x
    x = 316,911,526.57/20,279.04
  6. Step 6: Final answer
    x = 15,627.54

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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.