Home / 22,218.90-33,330.06-7,427.89

Finding the Fourth Proportional to 22,218.90, 33,330.06 and 7,427.89

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Solution

The fourth proportional to 22,218.90, 33,330.06 and 7,427.89 is: 11,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.90 : 33,330.06 = 7,427.89 : x
  2. Step 2: Convert to fraction form
    22,218.90/33,330.06 = 7,427.89/x
  3. Step 3: Cross multiply
    22,218.90x = 33,330.06 × 7,427.89
  4. Step 4: Simplify right side
    22,218.90x = 247,572,019.37
  5. Step 5: Solve for x
    x = 247,572,019.37/22,218.90
  6. Step 6: Final answer
    x = 11,142.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.