Home / 20,514.24-30,771.34-4,931.86

Finding the Fourth Proportional to 20,514.24, 30,771.34 and 4,931.86

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Solution

The fourth proportional to 20,514.24, 30,771.34 and 4,931.86 is: 7,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.24 : 30,771.34 = 4,931.86 : x
  2. Step 2: Convert to fraction form
    20,514.24/30,771.34 = 4,931.86/x
  3. Step 3: Cross multiply
    20,514.24x = 30,771.34 × 4,931.86
  4. Step 4: Simplify right side
    20,514.24x = 151,759,940.89
  5. Step 5: Solve for x
    x = 151,759,940.89/20,514.24
  6. Step 6: Final answer
    x = 7,397.79

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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.