Home / 57,738.60-86,586.30-20,284.20

Finding the Fourth Proportional to 57,738.60, 86,586.30 and 20,284.20

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Solution

The fourth proportional to 57,738.60, 86,586.30 and 20,284.20 is: 30,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,738.60 : 86,586.30 = 20,284.20 : x
  2. Step 2: Convert to fraction form
    57,738.60/86,586.30 = 20,284.20/x
  3. Step 3: Cross multiply
    57,738.60x = 86,586.30 × 20,284.20
  4. Step 4: Simplify right side
    57,738.60x = 1,756,333,826.46
  5. Step 5: Solve for x
    x = 1,756,333,826.46/57,738.60
  6. Step 6: Final answer
    x = 30,418.71

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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.