Home / 20,330.56-30,497.84-6,290.04

Finding the Fourth Proportional to 20,330.56, 30,497.84 and 6,290.04

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Solution

The fourth proportional to 20,330.56, 30,497.84 and 6,290.04 is: 9,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.56 : 30,497.84 = 6,290.04 : x
  2. Step 2: Convert to fraction form
    20,330.56/30,497.84 = 6,290.04/x
  3. Step 3: Cross multiply
    20,330.56x = 30,497.84 × 6,290.04
  4. Step 4: Simplify right side
    20,330.56x = 191,832,633.51
  5. Step 5: Solve for x
    x = 191,832,633.51/20,330.56
  6. Step 6: Final answer
    x = 9,435.68

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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.