Home / 38,626.80-57,900.78-21,951.60

Finding the Fourth Proportional to 38,626.80, 57,900.78 and 21,951.60

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Solution

The fourth proportional to 38,626.80, 57,900.78 and 21,951.60 is: 32,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,626.80 : 57,900.78 = 21,951.60 : x
  2. Step 2: Convert to fraction form
    38,626.80/57,900.78 = 21,951.60/x
  3. Step 3: Cross multiply
    38,626.80x = 57,900.78 × 21,951.60
  4. Step 4: Simplify right side
    38,626.80x = 1,271,014,762.25
  5. Step 5: Solve for x
    x = 1,271,014,762.25/38,626.80
  6. Step 6: Final answer
    x = 32,905.00

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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.