Home / 20,340.42-30,455.57-14,392.86

Finding the Fourth Proportional to 20,340.42, 30,455.57 and 14,392.86

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Solution

The fourth proportional to 20,340.42, 30,455.57 and 14,392.86 is: 21,550.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.42 : 30,455.57 = 14,392.86 : x
  2. Step 2: Convert to fraction form
    20,340.42/30,455.57 = 14,392.86/x
  3. Step 3: Cross multiply
    20,340.42x = 30,455.57 × 14,392.86
  4. Step 4: Simplify right side
    20,340.42x = 438,342,683.27
  5. Step 5: Solve for x
    x = 438,342,683.27/20,340.42
  6. Step 6: Final answer
    x = 21,550.33

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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.