Home / 19,288.38-28,927.52-8,189.34

Finding the Fourth Proportional to 19,288.38, 28,927.52 and 8,189.34

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Solution

The fourth proportional to 19,288.38, 28,927.52 and 8,189.34 is: 12,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.38 : 28,927.52 = 8,189.34 : x
  2. Step 2: Convert to fraction form
    19,288.38/28,927.52 = 8,189.34/x
  3. Step 3: Cross multiply
    19,288.38x = 28,927.52 × 8,189.34
  4. Step 4: Simplify right side
    19,288.38x = 236,897,296.64
  5. Step 5: Solve for x
    x = 236,897,296.64/19,288.38
  6. Step 6: Final answer
    x = 12,281.87

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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.