Home / 39,735.83-54,833.18-21,830.48

Finding the Fourth Proportional to 39,735.83, 54,833.18 and 21,830.48

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Solution

The fourth proportional to 39,735.83, 54,833.18 and 21,830.48 is: 30,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.83 : 54,833.18 = 21,830.48 : x
  2. Step 2: Convert to fraction form
    39,735.83/54,833.18 = 21,830.48/x
  3. Step 3: Cross multiply
    39,735.83x = 54,833.18 × 21,830.48
  4. Step 4: Simplify right side
    39,735.83x = 1,197,034,523.03
  5. Step 5: Solve for x
    x = 1,197,034,523.03/39,735.83
  6. Step 6: Final answer
    x = 30,124.81

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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.