Home / 43,651.20-65,476.80-12,486.45

Finding the Fourth Proportional to 43,651.20, 65,476.80 and 12,486.45

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Solution

The fourth proportional to 43,651.20, 65,476.80 and 12,486.45 is: 18,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,651.20 : 65,476.80 = 12,486.45 : x
  2. Step 2: Convert to fraction form
    43,651.20/65,476.80 = 12,486.45/x
  3. Step 3: Cross multiply
    43,651.20x = 65,476.80 × 12,486.45
  4. Step 4: Simplify right side
    43,651.20x = 817,572,789.36
  5. Step 5: Solve for x
    x = 817,572,789.36/43,651.20
  6. Step 6: Final answer
    x = 18,729.68

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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.