Home / 43,682.20-65,490.90-18,701.80

Finding the Fourth Proportional to 43,682.20, 65,490.90 and 18,701.80

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Solution

The fourth proportional to 43,682.20, 65,490.90 and 18,701.80 is: 28,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,682.20 : 65,490.90 = 18,701.80 : x
  2. Step 2: Convert to fraction form
    43,682.20/65,490.90 = 18,701.80/x
  3. Step 3: Cross multiply
    43,682.20x = 65,490.90 × 18,701.80
  4. Step 4: Simplify right side
    43,682.20x = 1,224,797,713.62
  5. Step 5: Solve for x
    x = 1,224,797,713.62/43,682.20
  6. Step 6: Final answer
    x = 28,038.83

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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.