Home / 20,551.57-28,358.14-12,050.48

Finding the Fourth Proportional to 20,551.57, 28,358.14 and 12,050.48

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Solution

The fourth proportional to 20,551.57, 28,358.14 and 12,050.48 is: 16,627.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.57 : 28,358.14 = 12,050.48 : x
  2. Step 2: Convert to fraction form
    20,551.57/28,358.14 = 12,050.48/x
  3. Step 3: Cross multiply
    20,551.57x = 28,358.14 × 12,050.48
  4. Step 4: Simplify right side
    20,551.57x = 341,729,285.20
  5. Step 5: Solve for x
    x = 341,729,285.20/20,551.57
  6. Step 6: Final answer
    x = 16,627.89

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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.