Home / 20,504.45-30,751.20-8,814.93

Finding the Fourth Proportional to 20,504.45, 30,751.20 and 8,814.93

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Solution

The fourth proportional to 20,504.45, 30,751.20 and 8,814.93 is: 13,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.45 : 30,751.20 = 8,814.93 : x
  2. Step 2: Convert to fraction form
    20,504.45/30,751.20 = 8,814.93/x
  3. Step 3: Cross multiply
    20,504.45x = 30,751.20 × 8,814.93
  4. Step 4: Simplify right side
    20,504.45x = 271,069,675.42
  5. Step 5: Solve for x
    x = 271,069,675.42/20,504.45
  6. Step 6: Final answer
    x = 13,220.04

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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.