Home / 19,101.38-28,638.14-12,845.84

Finding the Fourth Proportional to 19,101.38, 28,638.14 and 12,845.84

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Solution

The fourth proportional to 19,101.38, 28,638.14 and 12,845.84 is: 19,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.38 : 28,638.14 = 12,845.84 : x
  2. Step 2: Convert to fraction form
    19,101.38/28,638.14 = 12,845.84/x
  3. Step 3: Cross multiply
    19,101.38x = 28,638.14 × 12,845.84
  4. Step 4: Simplify right side
    19,101.38x = 367,880,964.34
  5. Step 5: Solve for x
    x = 367,880,964.34/19,101.38
  6. Step 6: Final answer
    x = 19,259.39

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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.