Home / 20,482.16-30,674.03-11,690.42

Finding the Fourth Proportional to 20,482.16, 30,674.03 and 11,690.42

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Solution

The fourth proportional to 20,482.16, 30,674.03 and 11,690.42 is: 17,507.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.16 : 30,674.03 = 11,690.42 : x
  2. Step 2: Convert to fraction form
    20,482.16/30,674.03 = 11,690.42/x
  3. Step 3: Cross multiply
    20,482.16x = 30,674.03 × 11,690.42
  4. Step 4: Simplify right side
    20,482.16x = 358,592,081.97
  5. Step 5: Solve for x
    x = 358,592,081.97/20,482.16
  6. Step 6: Final answer
    x = 17,507.54

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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.