Home / 20,168.40-30,233.97-10,814.93

Finding the Fourth Proportional to 20,168.40, 30,233.97 and 10,814.93

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Solution

The fourth proportional to 20,168.40, 30,233.97 and 10,814.93 is: 16,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.40 : 30,233.97 = 10,814.93 : x
  2. Step 2: Convert to fraction form
    20,168.40/30,233.97 = 10,814.93/x
  3. Step 3: Cross multiply
    20,168.40x = 30,233.97 × 10,814.93
  4. Step 4: Simplify right side
    20,168.40x = 326,978,118.00
  5. Step 5: Solve for x
    x = 326,978,118.00/20,168.40
  6. Step 6: Final answer
    x = 16,212.40

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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.