Home / 30,981.26-46,705.32-28,976.78

Finding the Fourth Proportional to 30,981.26, 46,705.32 and 28,976.78

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Solution

The fourth proportional to 30,981.26, 46,705.32 and 28,976.78 is: 43,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.26 : 46,705.32 = 28,976.78 : x
  2. Step 2: Convert to fraction form
    30,981.26/46,705.32 = 28,976.78/x
  3. Step 3: Cross multiply
    30,981.26x = 46,705.32 × 28,976.78
  4. Step 4: Simplify right side
    30,981.26x = 1,353,369,782.47
  5. Step 5: Solve for x
    x = 1,353,369,782.47/30,981.26
  6. Step 6: Final answer
    x = 43,683.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.