Home / 20,645.96-28,491.95-11,693.33

Finding the Fourth Proportional to 20,645.96, 28,491.95 and 11,693.33

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Solution

The fourth proportional to 20,645.96, 28,491.95 and 11,693.33 is: 16,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.96 : 28,491.95 = 11,693.33 : x
  2. Step 2: Convert to fraction form
    20,645.96/28,491.95 = 11,693.33/x
  3. Step 3: Cross multiply
    20,645.96x = 28,491.95 × 11,693.33
  4. Step 4: Simplify right side
    20,645.96x = 333,165,572.77
  5. Step 5: Solve for x
    x = 333,165,572.77/20,645.96
  6. Step 6: Final answer
    x = 16,137.09

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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.