Home / 20,162.37-27,825.75-11,210.70

Finding the Fourth Proportional to 20,162.37, 27,825.75 and 11,210.70

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Solution

The fourth proportional to 20,162.37, 27,825.75 and 11,210.70 is: 15,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.37 : 27,825.75 = 11,210.70 : x
  2. Step 2: Convert to fraction form
    20,162.37/27,825.75 = 11,210.70/x
  3. Step 3: Cross multiply
    20,162.37x = 27,825.75 × 11,210.70
  4. Step 4: Simplify right side
    20,162.37x = 311,946,135.53
  5. Step 5: Solve for x
    x = 311,946,135.53/20,162.37
  6. Step 6: Final answer
    x = 15,471.70

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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.