Home / 21,065.69-29,070.83-11,634.41

Finding the Fourth Proportional to 21,065.69, 29,070.83 and 11,634.41

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Solution

The fourth proportional to 21,065.69, 29,070.83 and 11,634.41 is: 16,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.69 : 29,070.83 = 11,634.41 : x
  2. Step 2: Convert to fraction form
    21,065.69/29,070.83 = 11,634.41/x
  3. Step 3: Cross multiply
    21,065.69x = 29,070.83 × 11,634.41
  4. Step 4: Simplify right side
    21,065.69x = 338,221,897.09
  5. Step 5: Solve for x
    x = 338,221,897.09/21,065.69
  6. Step 6: Final answer
    x = 16,055.58

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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.