Home / 25,688.09-35,383.61-18,121.11

Finding the Fourth Proportional to 25,688.09, 35,383.61 and 18,121.11

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Solution

The fourth proportional to 25,688.09, 35,383.61 and 18,121.11 is: 24,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.09 : 35,383.61 = 18,121.11 : x
  2. Step 2: Convert to fraction form
    25,688.09/35,383.61 = 18,121.11/x
  3. Step 3: Cross multiply
    25,688.09x = 35,383.61 × 18,121.11
  4. Step 4: Simplify right side
    25,688.09x = 641,190,243.70
  5. Step 5: Solve for x
    x = 641,190,243.70/25,688.09
  6. Step 6: Final answer
    x = 24,960.61

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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.