Home / 20,220.14-27,903.42-11,267.45

Finding the Fourth Proportional to 20,220.14, 27,903.42 and 11,267.45

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Solution

The fourth proportional to 20,220.14, 27,903.42 and 11,267.45 is: 15,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.14 : 27,903.42 = 11,267.45 : x
  2. Step 2: Convert to fraction form
    20,220.14/27,903.42 = 11,267.45/x
  3. Step 3: Cross multiply
    20,220.14x = 27,903.42 × 11,267.45
  4. Step 4: Simplify right side
    20,220.14x = 314,400,403.10
  5. Step 5: Solve for x
    x = 314,400,403.10/20,220.14
  6. Step 6: Final answer
    x = 15,548.87

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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.