Home / 19,021.40-28,516.63-7,936.34

Finding the Fourth Proportional to 19,021.40, 28,516.63 and 7,936.34

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Solution

The fourth proportional to 19,021.40, 28,516.63 and 7,936.34 is: 11,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.40 : 28,516.63 = 7,936.34 : x
  2. Step 2: Convert to fraction form
    19,021.40/28,516.63 = 7,936.34/x
  3. Step 3: Cross multiply
    19,021.40x = 28,516.63 × 7,936.34
  4. Step 4: Simplify right side
    19,021.40x = 226,317,742.63
  5. Step 5: Solve for x
    x = 226,317,742.63/19,021.40
  6. Step 6: Final answer
    x = 11,898.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.