Home / 30,815.52-46,187.76-13,930.32

Finding the Fourth Proportional to 30,815.52, 46,187.76 and 13,930.32

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Solution

The fourth proportional to 30,815.52, 46,187.76 and 13,930.32 is: 20,879.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.52 : 46,187.76 = 13,930.32 : x
  2. Step 2: Convert to fraction form
    30,815.52/46,187.76 = 13,930.32/x
  3. Step 3: Cross multiply
    30,815.52x = 46,187.76 × 13,930.32
  4. Step 4: Simplify right side
    30,815.52x = 643,410,276.88
  5. Step 5: Solve for x
    x = 643,410,276.88/30,815.52
  6. Step 6: Final answer
    x = 20,879.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.