Home / 28,099.14-38,704.13-19,586.07

Finding the Fourth Proportional to 28,099.14, 38,704.13 and 19,586.07

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Solution

The fourth proportional to 28,099.14, 38,704.13 and 19,586.07 is: 26,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.14 : 38,704.13 = 19,586.07 : x
  2. Step 2: Convert to fraction form
    28,099.14/38,704.13 = 19,586.07/x
  3. Step 3: Cross multiply
    28,099.14x = 38,704.13 × 19,586.07
  4. Step 4: Simplify right side
    28,099.14x = 758,061,774.99
  5. Step 5: Solve for x
    x = 758,061,774.99/28,099.14
  6. Step 6: Final answer
    x = 26,978.12

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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.