Home / 39,660.52-54,735.04-21,759.02

Finding the Fourth Proportional to 39,660.52, 54,735.04 and 21,759.02

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Solution

The fourth proportional to 39,660.52, 54,735.04 and 21,759.02 is: 30,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,660.52 : 54,735.04 = 21,759.02 : x
  2. Step 2: Convert to fraction form
    39,660.52/54,735.04 = 21,759.02/x
  3. Step 3: Cross multiply
    39,660.52x = 54,735.04 × 21,759.02
  4. Step 4: Simplify right side
    39,660.52x = 1,190,980,830.06
  5. Step 5: Solve for x
    x = 1,190,980,830.06/39,660.52
  6. Step 6: Final answer
    x = 30,029.38

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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.