Home / 19,857.15-29,776.11-11,539.56

Finding the Fourth Proportional to 19,857.15, 29,776.11 and 11,539.56

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Solution

The fourth proportional to 19,857.15, 29,776.11 and 11,539.56 is: 17,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.15 : 29,776.11 = 11,539.56 : x
  2. Step 2: Convert to fraction form
    19,857.15/29,776.11 = 11,539.56/x
  3. Step 3: Cross multiply
    19,857.15x = 29,776.11 × 11,539.56
  4. Step 4: Simplify right side
    19,857.15x = 343,603,276.30
  5. Step 5: Solve for x
    x = 343,603,276.30/19,857.15
  6. Step 6: Final answer
    x = 17,303.76

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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.