Home / 43,490.58-65,241.54-12,326.64

Finding the Fourth Proportional to 43,490.58, 65,241.54 and 12,326.64

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Solution

The fourth proportional to 43,490.58, 65,241.54 and 12,326.64 is: 18,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.58 : 65,241.54 = 12,326.64 : x
  2. Step 2: Convert to fraction form
    43,490.58/65,241.54 = 12,326.64/x
  3. Step 3: Cross multiply
    43,490.58x = 65,241.54 × 12,326.64
  4. Step 4: Simplify right side
    43,490.58x = 804,208,976.63
  5. Step 5: Solve for x
    x = 804,208,976.63/43,490.58
  6. Step 6: Final answer
    x = 18,491.57

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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.