Home / 20,636.37-30,801.87-18,025.34

Finding the Fourth Proportional to 20,636.37, 30,801.87 and 18,025.34

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Solution

The fourth proportional to 20,636.37, 30,801.87 and 18,025.34 is: 26,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,636.37 : 30,801.87 = 18,025.34 : x
  2. Step 2: Convert to fraction form
    20,636.37/30,801.87 = 18,025.34/x
  3. Step 3: Cross multiply
    20,636.37x = 30,801.87 × 18,025.34
  4. Step 4: Simplify right side
    20,636.37x = 555,214,025.38
  5. Step 5: Solve for x
    x = 555,214,025.38/20,636.37
  6. Step 6: Final answer
    x = 26,904.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.