Home / 20,551.58-28,360.68-11,599.46

Finding the Fourth Proportional to 20,551.58, 28,360.68 and 11,599.46

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Solution

The fourth proportional to 20,551.58, 28,360.68 and 11,599.46 is: 16,006.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.58 : 28,360.68 = 11,599.46 : x
  2. Step 2: Convert to fraction form
    20,551.58/28,360.68 = 11,599.46/x
  3. Step 3: Cross multiply
    20,551.58x = 28,360.68 × 11,599.46
  4. Step 4: Simplify right side
    20,551.58x = 328,968,431.43
  5. Step 5: Solve for x
    x = 328,968,431.43/20,551.58
  6. Step 6: Final answer
    x = 16,006.97

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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.