Home / 31,550.76-43,533.99-18,976.32

Finding the Fourth Proportional to 31,550.76, 43,533.99 and 18,976.32

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Solution

The fourth proportional to 31,550.76, 43,533.99 and 18,976.32 is: 26,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.76 : 43,533.99 = 18,976.32 : x
  2. Step 2: Convert to fraction form
    31,550.76/43,533.99 = 18,976.32/x
  3. Step 3: Cross multiply
    31,550.76x = 43,533.99 × 18,976.32
  4. Step 4: Simplify right side
    31,550.76x = 826,114,925.12
  5. Step 5: Solve for x
    x = 826,114,925.12/31,550.76
  6. Step 6: Final answer
    x = 26,183.68

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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.