Home / 35,947.78-53,903.25-19,321.80

Finding the Fourth Proportional to 35,947.78, 53,903.25 and 19,321.80

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Solution

The fourth proportional to 35,947.78, 53,903.25 and 19,321.80 is: 28,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,947.78 : 53,903.25 = 19,321.80 : x
  2. Step 2: Convert to fraction form
    35,947.78/53,903.25 = 19,321.80/x
  3. Step 3: Cross multiply
    35,947.78x = 53,903.25 × 19,321.80
  4. Step 4: Simplify right side
    35,947.78x = 1,041,507,815.85
  5. Step 5: Solve for x
    x = 1,041,507,815.85/35,947.78
  6. Step 6: Final answer
    x = 28,972.80

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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.