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Finding the Fourth Proportional to 37,212.49, 51,353.40 and 20,216.80

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Solution

The fourth proportional to 37,212.49, 51,353.40 and 20,216.80 is: 27,899.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,212.49 : 51,353.40 = 20,216.80 : x
  2. Step 2: Convert to fraction form
    37,212.49/51,353.40 = 20,216.80/x
  3. Step 3: Cross multiply
    37,212.49x = 51,353.40 × 20,216.80
  4. Step 4: Simplify right side
    37,212.49x = 1,038,201,417.12
  5. Step 5: Solve for x
    x = 1,038,201,417.12/37,212.49
  6. Step 6: Final answer
    x = 27,899.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.