Home / 43,126.88-64,690.31-11,962.13

Finding the Fourth Proportional to 43,126.88, 64,690.31 and 11,962.13

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Solution

The fourth proportional to 43,126.88, 64,690.31 and 11,962.13 is: 17,943.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,126.88 : 64,690.31 = 11,962.13 : x
  2. Step 2: Convert to fraction form
    43,126.88/64,690.31 = 11,962.13/x
  3. Step 3: Cross multiply
    43,126.88x = 64,690.31 × 11,962.13
  4. Step 4: Simplify right side
    43,126.88x = 773,833,604.41
  5. Step 5: Solve for x
    x = 773,833,604.41/43,126.88
  6. Step 6: Final answer
    x = 17,943.19

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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.