Home / 28,327.14-39,089.79-16,389.63

Finding the Fourth Proportional to 28,327.14, 39,089.79 and 16,389.63

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Solution

The fourth proportional to 28,327.14, 39,089.79 and 16,389.63 is: 22,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.14 : 39,089.79 = 16,389.63 : x
  2. Step 2: Convert to fraction form
    28,327.14/39,089.79 = 16,389.63/x
  3. Step 3: Cross multiply
    28,327.14x = 39,089.79 × 16,389.63
  4. Step 4: Simplify right side
    28,327.14x = 640,667,194.88
  5. Step 5: Solve for x
    x = 640,667,194.88/28,327.14
  6. Step 6: Final answer
    x = 22,616.73

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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.