Home / 19,840.46-27,380.82-10,887.89

Finding the Fourth Proportional to 19,840.46, 27,380.82 and 10,887.89

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Solution

The fourth proportional to 19,840.46, 27,380.82 and 10,887.89 is: 15,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.46 : 27,380.82 = 10,887.89 : x
  2. Step 2: Convert to fraction form
    19,840.46/27,380.82 = 10,887.89/x
  3. Step 3: Cross multiply
    19,840.46x = 27,380.82 × 10,887.89
  4. Step 4: Simplify right side
    19,840.46x = 298,119,219.37
  5. Step 5: Solve for x
    x = 298,119,219.37/19,840.46
  6. Step 6: Final answer
    x = 15,025.83

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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.