Home / 21,028.68-29,017.38-12,074.44

Finding the Fourth Proportional to 21,028.68, 29,017.38 and 12,074.44

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Solution

The fourth proportional to 21,028.68, 29,017.38 and 12,074.44 is: 16,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.68 : 29,017.38 = 12,074.44 : x
  2. Step 2: Convert to fraction form
    21,028.68/29,017.38 = 12,074.44/x
  3. Step 3: Cross multiply
    21,028.68x = 29,017.38 × 12,074.44
  4. Step 4: Simplify right side
    21,028.68x = 350,368,613.77
  5. Step 5: Solve for x
    x = 350,368,613.77/21,028.68
  6. Step 6: Final answer
    x = 16,661.46

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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.