Home / 26,651.64-36,775.32-15,321.61

Finding the Fourth Proportional to 26,651.64, 36,775.32 and 15,321.61

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Solution

The fourth proportional to 26,651.64, 36,775.32 and 15,321.61 is: 21,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,651.64 : 36,775.32 = 15,321.61 : x
  2. Step 2: Convert to fraction form
    26,651.64/36,775.32 = 15,321.61/x
  3. Step 3: Cross multiply
    26,651.64x = 36,775.32 × 15,321.61
  4. Step 4: Simplify right side
    26,651.64x = 563,457,110.67
  5. Step 5: Solve for x
    x = 563,457,110.67/26,651.64
  6. Step 6: Final answer
    x = 21,141.56

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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.