Home / 20,922.01-28,874.15-11,492.53

Finding the Fourth Proportional to 20,922.01, 28,874.15 and 11,492.53

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Solution

The fourth proportional to 20,922.01, 28,874.15 and 11,492.53 is: 15,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.01 : 28,874.15 = 11,492.53 : x
  2. Step 2: Convert to fraction form
    20,922.01/28,874.15 = 11,492.53/x
  3. Step 3: Cross multiply
    20,922.01x = 28,874.15 × 11,492.53
  4. Step 4: Simplify right side
    20,922.01x = 331,836,977.64
  5. Step 5: Solve for x
    x = 331,836,977.64/20,922.01
  6. Step 6: Final answer
    x = 15,860.66

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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.