Home / 26,676.87-36,771.54-21,002.61

Finding the Fourth Proportional to 26,676.87, 36,771.54 and 21,002.61

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Solution

The fourth proportional to 26,676.87, 36,771.54 and 21,002.61 is: 28,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,676.87 : 36,771.54 = 21,002.61 : x
  2. Step 2: Convert to fraction form
    26,676.87/36,771.54 = 21,002.61/x
  3. Step 3: Cross multiply
    26,676.87x = 36,771.54 × 21,002.61
  4. Step 4: Simplify right side
    26,676.87x = 772,298,313.72
  5. Step 5: Solve for x
    x = 772,298,313.72/26,676.87
  6. Step 6: Final answer
    x = 28,950.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.