Home / 20,325.85-30,489.31-5,535.07

Finding the Fourth Proportional to 20,325.85, 30,489.31 and 5,535.07

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Solution

The fourth proportional to 20,325.85, 30,489.31 and 5,535.07 is: 8,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.85 : 30,489.31 = 5,535.07 : x
  2. Step 2: Convert to fraction form
    20,325.85/30,489.31 = 5,535.07/x
  3. Step 3: Cross multiply
    20,325.85x = 30,489.31 × 5,535.07
  4. Step 4: Simplify right side
    20,325.85x = 168,760,465.10
  5. Step 5: Solve for x
    x = 168,760,465.10/20,325.85
  6. Step 6: Final answer
    x = 8,302.75

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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.