Home / 20,020.69-27,631.30-11,522.64

Finding the Fourth Proportional to 20,020.69, 27,631.30 and 11,522.64

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Solution

The fourth proportional to 20,020.69, 27,631.30 and 11,522.64 is: 15,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.69 : 27,631.30 = 11,522.64 : x
  2. Step 2: Convert to fraction form
    20,020.69/27,631.30 = 11,522.64/x
  3. Step 3: Cross multiply
    20,020.69x = 27,631.30 × 11,522.64
  4. Step 4: Simplify right side
    20,020.69x = 318,385,522.63
  5. Step 5: Solve for x
    x = 318,385,522.63/20,020.69
  6. Step 6: Final answer
    x = 15,902.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.