Home / 20,279.10-30,418.73-6,239.04

Finding the Fourth Proportional to 20,279.10, 30,418.73 and 6,239.04

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Solution

The fourth proportional to 20,279.10, 30,418.73 and 6,239.04 is: 9,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.10 : 30,418.73 = 6,239.04 : x
  2. Step 2: Convert to fraction form
    20,279.10/30,418.73 = 6,239.04/x
  3. Step 3: Cross multiply
    20,279.10x = 30,418.73 × 6,239.04
  4. Step 4: Simplify right side
    20,279.10x = 189,783,642.02
  5. Step 5: Solve for x
    x = 189,783,642.02/20,279.10
  6. Step 6: Final answer
    x = 9,358.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.