Home / 20,074.17-27,699.96-11,579.07

Finding the Fourth Proportional to 20,074.17, 27,699.96 and 11,579.07

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Solution

The fourth proportional to 20,074.17, 27,699.96 and 11,579.07 is: 15,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.17 : 27,699.96 = 11,579.07 : x
  2. Step 2: Convert to fraction form
    20,074.17/27,699.96 = 11,579.07/x
  3. Step 3: Cross multiply
    20,074.17x = 27,699.96 × 11,579.07
  4. Step 4: Simplify right side
    20,074.17x = 320,739,775.84
  5. Step 5: Solve for x
    x = 320,739,775.84/20,074.17
  6. Step 6: Final answer
    x = 15,977.74

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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.