Home / 19,818.19-27,349.68-11,321.56

Finding the Fourth Proportional to 19,818.19, 27,349.68 and 11,321.56

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Solution

The fourth proportional to 19,818.19, 27,349.68 and 11,321.56 is: 15,624.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.19 : 27,349.68 = 11,321.56 : x
  2. Step 2: Convert to fraction form
    19,818.19/27,349.68 = 11,321.56/x
  3. Step 3: Cross multiply
    19,818.19x = 27,349.68 × 11,321.56
  4. Step 4: Simplify right side
    19,818.19x = 309,641,043.10
  5. Step 5: Solve for x
    x = 309,641,043.10/19,818.19
  6. Step 6: Final answer
    x = 15,624.08

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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.