Home / 39,823.52-54,955.26-21,918.54

Finding the Fourth Proportional to 39,823.52, 54,955.26 and 21,918.54

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Solution

The fourth proportional to 39,823.52, 54,955.26 and 21,918.54 is: 30,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.52 : 54,955.26 = 21,918.54 : x
  2. Step 2: Convert to fraction form
    39,823.52/54,955.26 = 21,918.54/x
  3. Step 3: Cross multiply
    39,823.52x = 54,955.26 × 21,918.54
  4. Step 4: Simplify right side
    39,823.52x = 1,204,539,064.52
  5. Step 5: Solve for x
    x = 1,204,539,064.52/39,823.52
  6. Step 6: Final answer
    x = 30,246.93

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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.