Home / 43,434.88-65,153.44-11,845.20

Finding the Fourth Proportional to 43,434.88, 65,153.44 and 11,845.20

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Solution

The fourth proportional to 43,434.88, 65,153.44 and 11,845.20 is: 17,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,434.88 : 65,153.44 = 11,845.20 : x
  2. Step 2: Convert to fraction form
    43,434.88/65,153.44 = 11,845.20/x
  3. Step 3: Cross multiply
    43,434.88x = 65,153.44 × 11,845.20
  4. Step 4: Simplify right side
    43,434.88x = 771,755,527.49
  5. Step 5: Solve for x
    x = 771,755,527.49/43,434.88
  6. Step 6: Final answer
    x = 17,768.11

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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.