Home / 30,930.75-46,293.42-28,163.79

Finding the Fourth Proportional to 30,930.75, 46,293.42 and 28,163.79

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Solution

The fourth proportional to 30,930.75, 46,293.42 and 28,163.79 is: 42,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930.75 : 46,293.42 = 28,163.79 : x
  2. Step 2: Convert to fraction form
    30,930.75/46,293.42 = 28,163.79/x
  3. Step 3: Cross multiply
    30,930.75x = 46,293.42 × 28,163.79
  4. Step 4: Simplify right side
    30,930.75x = 1,303,798,159.26
  5. Step 5: Solve for x
    x = 1,303,798,159.26/30,930.75
  6. Step 6: Final answer
    x = 42,152.17

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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.