Home / 28,408.56-42,614.82-8,685.60

Finding the Fourth Proportional to 28,408.56, 42,614.82 and 8,685.60

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Solution

The fourth proportional to 28,408.56, 42,614.82 and 8,685.60 is: 13,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.56 : 42,614.82 = 8,685.60 : x
  2. Step 2: Convert to fraction form
    28,408.56/42,614.82 = 8,685.60/x
  3. Step 3: Cross multiply
    28,408.56x = 42,614.82 × 8,685.60
  4. Step 4: Simplify right side
    28,408.56x = 370,135,280.59
  5. Step 5: Solve for x
    x = 370,135,280.59/28,408.56
  6. Step 6: Final answer
    x = 13,029.01

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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.