Home / 20,256.08-30,380.45-5,461.52

Finding the Fourth Proportional to 20,256.08, 30,380.45 and 5,461.52

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Solution

The fourth proportional to 20,256.08, 30,380.45 and 5,461.52 is: 8,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.08 : 30,380.45 = 5,461.52 : x
  2. Step 2: Convert to fraction form
    20,256.08/30,380.45 = 5,461.52/x
  3. Step 3: Cross multiply
    20,256.08x = 30,380.45 × 5,461.52
  4. Step 4: Simplify right side
    20,256.08x = 165,923,256.07
  5. Step 5: Solve for x
    x = 165,923,256.07/20,256.08
  6. Step 6: Final answer
    x = 8,191.28

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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.