Home / 26,755.21-36,921.81-15,424.73

Finding the Fourth Proportional to 26,755.21, 36,921.81 and 15,424.73

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Solution

The fourth proportional to 26,755.21, 36,921.81 and 15,424.73 is: 21,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,755.21 : 36,921.81 = 15,424.73 : x
  2. Step 2: Convert to fraction form
    26,755.21/36,921.81 = 15,424.73/x
  3. Step 3: Cross multiply
    26,755.21x = 36,921.81 × 15,424.73
  4. Step 4: Simplify right side
    26,755.21x = 569,508,765.75
  5. Step 5: Solve for x
    x = 569,508,765.75/26,755.21
  6. Step 6: Final answer
    x = 21,285.90

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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.