Home / 20,220.42-27,903.80-11,267.73

Finding the Fourth Proportional to 20,220.42, 27,903.80 and 11,267.73

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Solution

The fourth proportional to 20,220.42, 27,903.80 and 11,267.73 is: 15,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.42 : 27,903.80 = 11,267.73 : x
  2. Step 2: Convert to fraction form
    20,220.42/27,903.80 = 11,267.73/x
  3. Step 3: Cross multiply
    20,220.42x = 27,903.80 × 11,267.73
  4. Step 4: Simplify right side
    20,220.42x = 314,412,484.37
  5. Step 5: Solve for x
    x = 314,412,484.37/20,220.42
  6. Step 6: Final answer
    x = 15,549.26

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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.