Home / 20,279.41-30,422.04-6,240.64

Finding the Fourth Proportional to 20,279.41, 30,422.04 and 6,240.64

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Solution

The fourth proportional to 20,279.41, 30,422.04 and 6,240.64 is: 9,361.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.41 : 30,422.04 = 6,240.64 : x
  2. Step 2: Convert to fraction form
    20,279.41/30,422.04 = 6,240.64/x
  3. Step 3: Cross multiply
    20,279.41x = 30,422.04 × 6,240.64
  4. Step 4: Simplify right side
    20,279.41x = 189,852,999.71
  5. Step 5: Solve for x
    x = 189,852,999.71/20,279.41
  6. Step 6: Final answer
    x = 9,361.86

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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.