Home / 20,145.22-30,215.41-5,355.27

Finding the Fourth Proportional to 20,145.22, 30,215.41 and 5,355.27

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Solution

The fourth proportional to 20,145.22, 30,215.41 and 5,355.27 is: 8,032.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.22 : 30,215.41 = 5,355.27 : x
  2. Step 2: Convert to fraction form
    20,145.22/30,215.41 = 5,355.27/x
  3. Step 3: Cross multiply
    20,145.22x = 30,215.41 × 5,355.27
  4. Step 4: Simplify right side
    20,145.22x = 161,811,678.71
  5. Step 5: Solve for x
    x = 161,811,678.71/20,145.22
  6. Step 6: Final answer
    x = 8,032.26

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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.