Home / 34,218.48-51,285.78-19,439.84

Finding the Fourth Proportional to 34,218.48, 51,285.78 and 19,439.84

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Solution

The fourth proportional to 34,218.48, 51,285.78 and 19,439.84 is: 29,135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.48 : 51,285.78 = 19,439.84 : x
  2. Step 2: Convert to fraction form
    34,218.48/51,285.78 = 19,439.84/x
  3. Step 3: Cross multiply
    34,218.48x = 51,285.78 × 19,439.84
  4. Step 4: Simplify right side
    34,218.48x = 996,987,357.48
  5. Step 5: Solve for x
    x = 996,987,357.48/34,218.48
  6. Step 6: Final answer
    x = 29,135.93

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1.5x scale

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.