Home / 26,403.18-36,414.81-18,836.16

Finding the Fourth Proportional to 26,403.18, 36,414.81 and 18,836.16

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Solution

The fourth proportional to 26,403.18, 36,414.81 and 18,836.16 is: 25,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,403.18 : 36,414.81 = 18,836.16 : x
  2. Step 2: Convert to fraction form
    26,403.18/36,414.81 = 18,836.16/x
  3. Step 3: Cross multiply
    26,403.18x = 36,414.81 × 18,836.16
  4. Step 4: Simplify right side
    26,403.18x = 685,915,187.53
  5. Step 5: Solve for x
    x = 685,915,187.53/26,403.18
  6. Step 6: Final answer
    x = 25,978.51

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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.