Home / 47,278.35-70,947.09-19,198.53

Finding the Fourth Proportional to 47,278.35, 70,947.09 and 19,198.53

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Solution

The fourth proportional to 47,278.35, 70,947.09 and 19,198.53 is: 28,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,278.35 : 70,947.09 = 19,198.53 : x
  2. Step 2: Convert to fraction form
    47,278.35/70,947.09 = 19,198.53/x
  3. Step 3: Cross multiply
    47,278.35x = 70,947.09 × 19,198.53
  4. Step 4: Simplify right side
    47,278.35x = 1,362,079,835.78
  5. Step 5: Solve for x
    x = 1,362,079,835.78/47,278.35
  6. Step 6: Final answer
    x = 28,809.80

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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.