Home / 39,134.68-54,005.55-21,907.07

Finding the Fourth Proportional to 39,134.68, 54,005.55 and 21,907.07

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Solution

The fourth proportional to 39,134.68, 54,005.55 and 21,907.07 is: 30,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.68 : 54,005.55 = 21,907.07 : x
  2. Step 2: Convert to fraction form
    39,134.68/54,005.55 = 21,907.07/x
  3. Step 3: Cross multiply
    39,134.68x = 54,005.55 × 21,907.07
  4. Step 4: Simplify right side
    39,134.68x = 1,183,103,641.59
  5. Step 5: Solve for x
    x = 1,183,103,641.59/39,134.68
  6. Step 6: Final answer
    x = 30,231.59

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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.