Home / 26,190.24-39,284.49-8,420.86

Finding the Fourth Proportional to 26,190.24, 39,284.49 and 8,420.86

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Solution

The fourth proportional to 26,190.24, 39,284.49 and 8,420.86 is: 12,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.24 : 39,284.49 = 8,420.86 : x
  2. Step 2: Convert to fraction form
    26,190.24/39,284.49 = 8,420.86/x
  3. Step 3: Cross multiply
    26,190.24x = 39,284.49 × 8,420.86
  4. Step 4: Simplify right side
    26,190.24x = 330,809,271.15
  5. Step 5: Solve for x
    x = 330,809,271.15/26,190.24
  6. Step 6: Final answer
    x = 12,631.02

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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.