Home / 43,489.80-65,235.36-12,325.02

Finding the Fourth Proportional to 43,489.80, 65,235.36 and 12,325.02

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Solution

The fourth proportional to 43,489.80, 65,235.36 and 12,325.02 is: 18,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,489.80 : 65,235.36 = 12,325.02 : x
  2. Step 2: Convert to fraction form
    43,489.80/65,235.36 = 12,325.02/x
  3. Step 3: Cross multiply
    43,489.80x = 65,235.36 × 12,325.02
  4. Step 4: Simplify right side
    43,489.80x = 804,027,116.71
  5. Step 5: Solve for x
    x = 804,027,116.71/43,489.80
  6. Step 6: Final answer
    x = 18,487.72

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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.