Home / 20,550.36-30,833.26-12,235.16

Finding the Fourth Proportional to 20,550.36, 30,833.26 and 12,235.16

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Solution

The fourth proportional to 20,550.36, 30,833.26 and 12,235.16 is: 18,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.36 : 30,833.26 = 12,235.16 : x
  2. Step 2: Convert to fraction form
    20,550.36/30,833.26 = 12,235.16/x
  3. Step 3: Cross multiply
    20,550.36x = 30,833.26 × 12,235.16
  4. Step 4: Simplify right side
    20,550.36x = 377,249,869.42
  5. Step 5: Solve for x
    x = 377,249,869.42/20,550.36
  6. Step 6: Final answer
    x = 18,357.34

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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.