Home / 20,354.23-28,089.13-11,856.14

Finding the Fourth Proportional to 20,354.23, 28,089.13 and 11,856.14

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Solution

The fourth proportional to 20,354.23, 28,089.13 and 11,856.14 is: 16,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.23 : 28,089.13 = 11,856.14 : x
  2. Step 2: Convert to fraction form
    20,354.23/28,089.13 = 11,856.14/x
  3. Step 3: Cross multiply
    20,354.23x = 28,089.13 × 11,856.14
  4. Step 4: Simplify right side
    20,354.23x = 333,028,546.95
  5. Step 5: Solve for x
    x = 333,028,546.95/20,354.23
  6. Step 6: Final answer
    x = 16,361.64

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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.