Home / 43,955.19-65,943.72-12,790.44

Finding the Fourth Proportional to 43,955.19, 65,943.72 and 12,790.44

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Solution

The fourth proportional to 43,955.19, 65,943.72 and 12,790.44 is: 19,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,955.19 : 65,943.72 = 12,790.44 : x
  2. Step 2: Convert to fraction form
    43,955.19/65,943.72 = 12,790.44/x
  3. Step 3: Cross multiply
    43,955.19x = 65,943.72 × 12,790.44
  4. Step 4: Simplify right side
    43,955.19x = 843,449,130.08
  5. Step 5: Solve for x
    x = 843,449,130.08/43,955.19
  6. Step 6: Final answer
    x = 19,188.84

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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.