Home / 20,482.04-30,722.81-11,181.32

Finding the Fourth Proportional to 20,482.04, 30,722.81 and 11,181.32

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Solution

The fourth proportional to 20,482.04, 30,722.81 and 11,181.32 is: 16,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.04 : 30,722.81 = 11,181.32 : x
  2. Step 2: Convert to fraction form
    20,482.04/30,722.81 = 11,181.32/x
  3. Step 3: Cross multiply
    20,482.04x = 30,722.81 × 11,181.32
  4. Step 4: Simplify right side
    20,482.04x = 343,521,360.39
  5. Step 5: Solve for x
    x = 343,521,360.39/20,482.04
  6. Step 6: Final answer
    x = 16,771.83

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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.