Home / 20,141.40-27,912.90-19,859.52

Finding the Fourth Proportional to 20,141.40, 27,912.90 and 19,859.52

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Solution

The fourth proportional to 20,141.40, 27,912.90 and 19,859.52 is: 27,522.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.40 : 27,912.90 = 19,859.52 : x
  2. Step 2: Convert to fraction form
    20,141.40/27,912.90 = 19,859.52/x
  3. Step 3: Cross multiply
    20,141.40x = 27,912.90 × 19,859.52
  4. Step 4: Simplify right side
    20,141.40x = 554,336,795.81
  5. Step 5: Solve for x
    x = 554,336,795.81/20,141.40
  6. Step 6: Final answer
    x = 27,522.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.