Home / 21,106.26-29,128.68-14,034.96

Finding the Fourth Proportional to 21,106.26, 29,128.68 and 14,034.96

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Solution

The fourth proportional to 21,106.26, 29,128.68 and 14,034.96 is: 19,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.26 : 29,128.68 = 14,034.96 : x
  2. Step 2: Convert to fraction form
    21,106.26/29,128.68 = 14,034.96/x
  3. Step 3: Cross multiply
    21,106.26x = 29,128.68 × 14,034.96
  4. Step 4: Simplify right side
    21,106.26x = 408,819,858.65
  5. Step 5: Solve for x
    x = 408,819,858.65/21,106.26
  6. Step 6: Final answer
    x = 19,369.60

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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.