Home / 21,033.84-29,022.66-12,650.88

Finding the Fourth Proportional to 21,033.84, 29,022.66 and 12,650.88

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Solution

The fourth proportional to 21,033.84, 29,022.66 and 12,650.88 is: 17,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.84 : 29,022.66 = 12,650.88 : x
  2. Step 2: Convert to fraction form
    21,033.84/29,022.66 = 12,650.88/x
  3. Step 3: Cross multiply
    21,033.84x = 29,022.66 × 12,650.88
  4. Step 4: Simplify right side
    21,033.84x = 367,162,188.94
  5. Step 5: Solve for x
    x = 367,162,188.94/21,033.84
  6. Step 6: Final answer
    x = 17,455.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.