Home / 19,819.21-29,739.57-11,505.19

Finding the Fourth Proportional to 19,819.21, 29,739.57 and 11,505.19

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Solution

The fourth proportional to 19,819.21, 29,739.57 and 11,505.19 is: 17,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.21 : 29,739.57 = 11,505.19 : x
  2. Step 2: Convert to fraction form
    19,819.21/29,739.57 = 11,505.19/x
  3. Step 3: Cross multiply
    19,819.21x = 29,739.57 × 11,505.19
  4. Step 4: Simplify right side
    19,819.21x = 342,159,406.35
  5. Step 5: Solve for x
    x = 342,159,406.35/19,819.21
  6. Step 6: Final answer
    x = 17,264.03

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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.