Home / 37,185.60-51,315.84-20,418.56

Finding the Fourth Proportional to 37,185.60, 51,315.84 and 20,418.56

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Solution

The fourth proportional to 37,185.60, 51,315.84 and 20,418.56 is: 28,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.60 : 51,315.84 = 20,418.56 : x
  2. Step 2: Convert to fraction form
    37,185.60/51,315.84 = 20,418.56/x
  3. Step 3: Cross multiply
    37,185.60x = 51,315.84 × 20,418.56
  4. Step 4: Simplify right side
    37,185.60x = 1,047,795,557.99
  5. Step 5: Solve for x
    x = 1,047,795,557.99/37,185.60
  6. Step 6: Final answer
    x = 28,177.45

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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.