Home / 20,528.55-30,791.88-14,270.04

Finding the Fourth Proportional to 20,528.55, 30,791.88 and 14,270.04

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Solution

The fourth proportional to 20,528.55, 30,791.88 and 14,270.04 is: 21,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.55 : 30,791.88 = 14,270.04 : x
  2. Step 2: Convert to fraction form
    20,528.55/30,791.88 = 14,270.04/x
  3. Step 3: Cross multiply
    20,528.55x = 30,791.88 × 14,270.04
  4. Step 4: Simplify right side
    20,528.55x = 439,401,359.28
  5. Step 5: Solve for x
    x = 439,401,359.28/20,528.55
  6. Step 6: Final answer
    x = 21,404.40

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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.