Home / 21,072.58-29,080.14-11,641.15

Finding the Fourth Proportional to 21,072.58, 29,080.14 and 11,641.15

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Solution

The fourth proportional to 21,072.58, 29,080.14 and 11,641.15 is: 16,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.58 : 29,080.14 = 11,641.15 : x
  2. Step 2: Convert to fraction form
    21,072.58/29,080.14 = 11,641.15/x
  3. Step 3: Cross multiply
    21,072.58x = 29,080.14 × 11,641.15
  4. Step 4: Simplify right side
    21,072.58x = 338,526,271.76
  5. Step 5: Solve for x
    x = 338,526,271.76/21,072.58
  6. Step 6: Final answer
    x = 16,064.78

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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.