Home / 20,222.01-30,333.06-9,115.79

Finding the Fourth Proportional to 20,222.01, 30,333.06 and 9,115.79

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Solution

The fourth proportional to 20,222.01, 30,333.06 and 9,115.79 is: 13,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.01 : 30,333.06 = 9,115.79 : x
  2. Step 2: Convert to fraction form
    20,222.01/30,333.06 = 9,115.79/x
  3. Step 3: Cross multiply
    20,222.01x = 30,333.06 × 9,115.79
  4. Step 4: Simplify right side
    20,222.01x = 276,509,653.35
  5. Step 5: Solve for x
    x = 276,509,653.35/20,222.01
  6. Step 6: Final answer
    x = 13,673.70

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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.