Home / 43,625.90-65,439.22-18,653.06

Finding the Fourth Proportional to 43,625.90, 65,439.22 and 18,653.06

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Solution

The fourth proportional to 43,625.90, 65,439.22 and 18,653.06 is: 27,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,625.90 : 65,439.22 = 18,653.06 : x
  2. Step 2: Convert to fraction form
    43,625.90/65,439.22 = 18,653.06/x
  3. Step 3: Cross multiply
    43,625.90x = 65,439.22 × 18,653.06
  4. Step 4: Simplify right side
    43,625.90x = 1,220,641,697.01
  5. Step 5: Solve for x
    x = 1,220,641,697.01/43,625.90
  6. Step 6: Final answer
    x = 27,979.75

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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.