Home / 28,428.44-42,668.92-14,398.33

Finding the Fourth Proportional to 28,428.44, 42,668.92 and 14,398.33

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Solution

The fourth proportional to 28,428.44, 42,668.92 and 14,398.33 is: 21,610.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.44 : 42,668.92 = 14,398.33 : x
  2. Step 2: Convert to fraction form
    28,428.44/42,668.92 = 14,398.33/x
  3. Step 3: Cross multiply
    28,428.44x = 42,668.92 × 14,398.33
  4. Step 4: Simplify right side
    28,428.44x = 614,361,102.23
  5. Step 5: Solve for x
    x = 614,361,102.23/28,428.44
  6. Step 6: Final answer
    x = 21,610.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.