Home / 21,028.67-29,034.14-13,074.47

Finding the Fourth Proportional to 21,028.67, 29,034.14 and 13,074.47

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Solution

The fourth proportional to 21,028.67, 29,034.14 and 13,074.47 is: 18,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.67 : 29,034.14 = 13,074.47 : x
  2. Step 2: Convert to fraction form
    21,028.67/29,034.14 = 13,074.47/x
  3. Step 3: Cross multiply
    21,028.67x = 29,034.14 × 13,074.47
  4. Step 4: Simplify right side
    21,028.67x = 379,605,992.41
  5. Step 5: Solve for x
    x = 379,605,992.41/21,028.67
  6. Step 6: Final answer
    x = 18,051.83

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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.