Home / 26,786.20-36,964.32-15,455.72

Finding the Fourth Proportional to 26,786.20, 36,964.32 and 15,455.72

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Solution

The fourth proportional to 26,786.20, 36,964.32 and 15,455.72 is: 21,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.20 : 36,964.32 = 15,455.72 : x
  2. Step 2: Convert to fraction form
    26,786.20/36,964.32 = 15,455.72/x
  3. Step 3: Cross multiply
    26,786.20x = 36,964.32 × 15,455.72
  4. Step 4: Simplify right side
    26,786.20x = 571,310,179.91
  5. Step 5: Solve for x
    x = 571,310,179.91/26,786.20
  6. Step 6: Final answer
    x = 21,328.53

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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.