Home / 20,106.23-27,749.47-11,606.66

Finding the Fourth Proportional to 20,106.23, 27,749.47 and 11,606.66

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Solution

The fourth proportional to 20,106.23, 27,749.47 and 11,606.66 is: 16,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.23 : 27,749.47 = 11,606.66 : x
  2. Step 2: Convert to fraction form
    20,106.23/27,749.47 = 11,606.66/x
  3. Step 3: Cross multiply
    20,106.23x = 27,749.47 × 11,606.66
  4. Step 4: Simplify right side
    20,106.23x = 322,078,621.53
  5. Step 5: Solve for x
    x = 322,078,621.53/20,106.23
  6. Step 6: Final answer
    x = 16,018.84

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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.