Home / 26,877.21-40,315.77-8,409.21

Finding the Fourth Proportional to 26,877.21, 40,315.77 and 8,409.21

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Solution

The fourth proportional to 26,877.21, 40,315.77 and 8,409.21 is: 12,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,877.21 : 40,315.77 = 8,409.21 : x
  2. Step 2: Convert to fraction form
    26,877.21/40,315.77 = 8,409.21/x
  3. Step 3: Cross multiply
    26,877.21x = 40,315.77 × 8,409.21
  4. Step 4: Simplify right side
    26,877.21x = 339,023,776.24
  5. Step 5: Solve for x
    x = 339,023,776.24/26,877.21
  6. Step 6: Final answer
    x = 12,613.80

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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.