Home / 20,059.86-27,681.42-11,106.84

Finding the Fourth Proportional to 20,059.86, 27,681.42 and 11,106.84

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Solution

The fourth proportional to 20,059.86, 27,681.42 and 11,106.84 is: 15,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.86 : 27,681.42 = 11,106.84 : x
  2. Step 2: Convert to fraction form
    20,059.86/27,681.42 = 11,106.84/x
  3. Step 3: Cross multiply
    20,059.86x = 27,681.42 × 11,106.84
  4. Step 4: Simplify right side
    20,059.86x = 307,453,102.91
  5. Step 5: Solve for x
    x = 307,453,102.91/20,059.86
  6. Step 6: Final answer
    x = 15,326.78

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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.