Home / 20,220.37-27,903.73-11,267.68

Finding the Fourth Proportional to 20,220.37, 27,903.73 and 11,267.68

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Solution

The fourth proportional to 20,220.37, 27,903.73 and 11,267.68 is: 15,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.37 : 27,903.73 = 11,267.68 : x
  2. Step 2: Convert to fraction form
    20,220.37/27,903.73 = 11,267.68/x
  3. Step 3: Cross multiply
    20,220.37x = 27,903.73 × 11,267.68
  4. Step 4: Simplify right side
    20,220.37x = 314,410,300.45
  5. Step 5: Solve for x
    x = 314,410,300.45/20,220.37
  6. Step 6: Final answer
    x = 15,549.19

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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.