Home / 43,622.20-65,433.30-38,438.20

Finding the Fourth Proportional to 43,622.20, 65,433.30 and 38,438.20

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Solution

The fourth proportional to 43,622.20, 65,433.30 and 38,438.20 is: 57,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,622.20 : 65,433.30 = 38,438.20 : x
  2. Step 2: Convert to fraction form
    43,622.20/65,433.30 = 38,438.20/x
  3. Step 3: Cross multiply
    43,622.20x = 65,433.30 × 38,438.20
  4. Step 4: Simplify right side
    43,622.20x = 2,515,138,272.06
  5. Step 5: Solve for x
    x = 2,515,138,272.06/43,622.20
  6. Step 6: Final answer
    x = 57,657.30

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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.