Home / 21,228.12-29,295.07-11,667.94

Finding the Fourth Proportional to 21,228.12, 29,295.07 and 11,667.94

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Solution

The fourth proportional to 21,228.12, 29,295.07 and 11,667.94 is: 16,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.12 : 29,295.07 = 11,667.94 : x
  2. Step 2: Convert to fraction form
    21,228.12/29,295.07 = 11,667.94/x
  3. Step 3: Cross multiply
    21,228.12x = 29,295.07 × 11,667.94
  4. Step 4: Simplify right side
    21,228.12x = 341,813,180.65
  5. Step 5: Solve for x
    x = 341,813,180.65/21,228.12
  6. Step 6: Final answer
    x = 16,101.90

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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.