Home / 19,101.40-28,660.20-9,235.60

Finding the Fourth Proportional to 19,101.40, 28,660.20 and 9,235.60

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Solution

The fourth proportional to 19,101.40, 28,660.20 and 9,235.60 is: 13,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.40 : 28,660.20 = 9,235.60 : x
  2. Step 2: Convert to fraction form
    19,101.40/28,660.20 = 9,235.60/x
  3. Step 3: Cross multiply
    19,101.40x = 28,660.20 × 9,235.60
  4. Step 4: Simplify right side
    19,101.40x = 264,694,143.12
  5. Step 5: Solve for x
    x = 264,694,143.12/19,101.40
  6. Step 6: Final answer
    x = 13,857.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.