Home / 39,957.72-55,124.85-28,028.85

Finding the Fourth Proportional to 39,957.72, 55,124.85 and 28,028.85

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Solution

The fourth proportional to 39,957.72, 55,124.85 and 28,028.85 is: 38,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957.72 : 55,124.85 = 28,028.85 : x
  2. Step 2: Convert to fraction form
    39,957.72/55,124.85 = 28,028.85/x
  3. Step 3: Cross multiply
    39,957.72x = 55,124.85 × 28,028.85
  4. Step 4: Simplify right side
    39,957.72x = 1,545,086,151.92
  5. Step 5: Solve for x
    x = 1,545,086,151.92/39,957.72
  6. Step 6: Final answer
    x = 38,668.03

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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.