Home / 28,122.95-42,191.26-8,401.37

Finding the Fourth Proportional to 28,122.95, 42,191.26 and 8,401.37

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Solution

The fourth proportional to 28,122.95, 42,191.26 and 8,401.37 is: 12,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.95 : 42,191.26 = 8,401.37 : x
  2. Step 2: Convert to fraction form
    28,122.95/42,191.26 = 8,401.37/x
  3. Step 3: Cross multiply
    28,122.95x = 42,191.26 × 8,401.37
  4. Step 4: Simplify right side
    28,122.95x = 354,464,154.07
  5. Step 5: Solve for x
    x = 354,464,154.07/28,122.95
  6. Step 6: Final answer
    x = 12,604.09

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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.