Home / 39,050.76-53,894.03-28,157.86

Finding the Fourth Proportional to 39,050.76, 53,894.03 and 28,157.86

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Solution

The fourth proportional to 39,050.76, 53,894.03 and 28,157.86 is: 38,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,050.76 : 53,894.03 = 28,157.86 : x
  2. Step 2: Convert to fraction form
    39,050.76/53,894.03 = 28,157.86/x
  3. Step 3: Cross multiply
    39,050.76x = 53,894.03 × 28,157.86
  4. Step 4: Simplify right side
    39,050.76x = 1,517,540,141.32
  5. Step 5: Solve for x
    x = 1,517,540,141.32/39,050.76
  6. Step 6: Final answer
    x = 38,860.71

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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.