Home / 26,321.45-36,318.58-15,712.07

Finding the Fourth Proportional to 26,321.45, 36,318.58 and 15,712.07

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Solution

The fourth proportional to 26,321.45, 36,318.58 and 15,712.07 is: 21,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,321.45 : 36,318.58 = 15,712.07 : x
  2. Step 2: Convert to fraction form
    26,321.45/36,318.58 = 15,712.07/x
  3. Step 3: Cross multiply
    26,321.45x = 36,318.58 × 15,712.07
  4. Step 4: Simplify right side
    26,321.45x = 570,639,850.39
  5. Step 5: Solve for x
    x = 570,639,850.39/26,321.45
  6. Step 6: Final answer
    x = 21,679.66

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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.