Home / 37,129.45-51,238.02-20,996.50

Finding the Fourth Proportional to 37,129.45, 51,238.02 and 20,996.50

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Solution

The fourth proportional to 37,129.45, 51,238.02 and 20,996.50 is: 28,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.45 : 51,238.02 = 20,996.50 : x
  2. Step 2: Convert to fraction form
    37,129.45/51,238.02 = 20,996.50/x
  3. Step 3: Cross multiply
    37,129.45x = 51,238.02 × 20,996.50
  4. Step 4: Simplify right side
    37,129.45x = 1,075,819,086.93
  5. Step 5: Solve for x
    x = 1,075,819,086.93/37,129.45
  6. Step 6: Final answer
    x = 28,974.82

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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.