Home / 43,786.72-65,681.52-12,622.24

Finding the Fourth Proportional to 43,786.72, 65,681.52 and 12,622.24

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Solution

The fourth proportional to 43,786.72, 65,681.52 and 12,622.24 is: 18,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,786.72 : 65,681.52 = 12,622.24 : x
  2. Step 2: Convert to fraction form
    43,786.72/65,681.52 = 12,622.24/x
  3. Step 3: Cross multiply
    43,786.72x = 65,681.52 × 12,622.24
  4. Step 4: Simplify right side
    43,786.72x = 829,047,909.00
  5. Step 5: Solve for x
    x = 829,047,909.00/43,786.72
  6. Step 6: Final answer
    x = 18,933.78

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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.