Home / 40,317.76-55,608.24-28,384.48

Finding the Fourth Proportional to 40,317.76, 55,608.24 and 28,384.48

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Solution

The fourth proportional to 40,317.76, 55,608.24 and 28,384.48 is: 39,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,317.76 : 55,608.24 = 28,384.48 : x
  2. Step 2: Convert to fraction form
    40,317.76/55,608.24 = 28,384.48/x
  3. Step 3: Cross multiply
    40,317.76x = 55,608.24 × 28,384.48
  4. Step 4: Simplify right side
    40,317.76x = 1,578,410,976.12
  5. Step 5: Solve for x
    x = 1,578,410,976.12/40,317.76
  6. Step 6: Final answer
    x = 39,149.27

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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.