Home / 30,923.68-46,255.42-28,680.20

Finding the Fourth Proportional to 30,923.68, 46,255.42 and 28,680.20

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Solution

The fourth proportional to 30,923.68, 46,255.42 and 28,680.20 is: 42,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,923.68 : 46,255.42 = 28,680.20 : x
  2. Step 2: Convert to fraction form
    30,923.68/46,255.42 = 28,680.20/x
  3. Step 3: Cross multiply
    30,923.68x = 46,255.42 × 28,680.20
  4. Step 4: Simplify right side
    30,923.68x = 1,326,614,696.68
  5. Step 5: Solve for x
    x = 1,326,614,696.68/30,923.68
  6. Step 6: Final answer
    x = 42,899.64

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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.