Home / 28,127.93-42,194.41-8,137.10

Finding the Fourth Proportional to 28,127.93, 42,194.41 and 8,137.10

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Solution

The fourth proportional to 28,127.93, 42,194.41 and 8,137.10 is: 12,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.93 : 42,194.41 = 8,137.10 : x
  2. Step 2: Convert to fraction form
    28,127.93/42,194.41 = 8,137.10/x
  3. Step 3: Cross multiply
    28,127.93x = 42,194.41 × 8,137.10
  4. Step 4: Simplify right side
    28,127.93x = 343,340,218.75
  5. Step 5: Solve for x
    x = 343,340,218.75/28,127.93
  6. Step 6: Final answer
    x = 12,206.38

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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.