Home / 47,665.87-65,733.32-28,542.78

Finding the Fourth Proportional to 47,665.87, 65,733.32 and 28,542.78

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Solution

The fourth proportional to 47,665.87, 65,733.32 and 28,542.78 is: 39,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,665.87 : 65,733.32 = 28,542.78 : x
  2. Step 2: Convert to fraction form
    47,665.87/65,733.32 = 28,542.78/x
  3. Step 3: Cross multiply
    47,665.87x = 65,733.32 × 28,542.78
  4. Step 4: Simplify right side
    47,665.87x = 1,876,211,762.79
  5. Step 5: Solve for x
    x = 1,876,211,762.79/47,665.87
  6. Step 6: Final answer
    x = 39,361.75

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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.