Home / 21,235.65-29,305.04-11,675.49

Finding the Fourth Proportional to 21,235.65, 29,305.04 and 11,675.49

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Solution

The fourth proportional to 21,235.65, 29,305.04 and 11,675.49 is: 16,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.65 : 29,305.04 = 11,675.49 : x
  2. Step 2: Convert to fraction form
    21,235.65/29,305.04 = 11,675.49/x
  3. Step 3: Cross multiply
    21,235.65x = 29,305.04 × 11,675.49
  4. Step 4: Simplify right side
    21,235.65x = 342,150,643.09
  5. Step 5: Solve for x
    x = 342,150,643.09/21,235.65
  6. Step 6: Final answer
    x = 16,112.09

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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.