Home / 30,942.09-46,378.58-28,451.07

Finding the Fourth Proportional to 30,942.09, 46,378.58 and 28,451.07

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Solution

The fourth proportional to 30,942.09, 46,378.58 and 28,451.07 is: 42,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.09 : 46,378.58 = 28,451.07 : x
  2. Step 2: Convert to fraction form
    30,942.09/46,378.58 = 28,451.07/x
  3. Step 3: Cross multiply
    30,942.09x = 46,378.58 × 28,451.07
  4. Step 4: Simplify right side
    30,942.09x = 1,319,520,083.83
  5. Step 5: Solve for x
    x = 1,319,520,083.83/30,942.09
  6. Step 6: Final answer
    x = 42,644.83

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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.