Home / 20,153.37-27,812.59-11,201.02

Finding the Fourth Proportional to 20,153.37, 27,812.59 and 11,201.02

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Solution

The fourth proportional to 20,153.37, 27,812.59 and 11,201.02 is: 15,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.37 : 27,812.59 = 11,201.02 : x
  2. Step 2: Convert to fraction form
    20,153.37/27,812.59 = 11,201.02/x
  3. Step 3: Cross multiply
    20,153.37x = 27,812.59 × 11,201.02
  4. Step 4: Simplify right side
    20,153.37x = 311,529,181.77
  5. Step 5: Solve for x
    x = 311,529,181.77/20,153.37
  6. Step 6: Final answer
    x = 15,457.92

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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.