Home / 37,213.78-51,355.60-20,218.36

Finding the Fourth Proportional to 37,213.78, 51,355.60 and 20,218.36

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Solution

The fourth proportional to 37,213.78, 51,355.60 and 20,218.36 is: 27,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,213.78 : 51,355.60 = 20,218.36 : x
  2. Step 2: Convert to fraction form
    37,213.78/51,355.60 = 20,218.36/x
  3. Step 3: Cross multiply
    37,213.78x = 51,355.60 × 20,218.36
  4. Step 4: Simplify right side
    37,213.78x = 1,038,325,907.72
  5. Step 5: Solve for x
    x = 1,038,325,907.72/37,213.78
  6. Step 6: Final answer
    x = 27,901.65

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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.