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Finding the Fourth Proportional to 30,880.71, 46,323.80 and 8,694.28

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Solution

The fourth proportional to 30,880.71, 46,323.80 and 8,694.28 is: 13,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880.71 : 46,323.80 = 8,694.28 : x
  2. Step 2: Convert to fraction form
    30,880.71/46,323.80 = 8,694.28/x
  3. Step 3: Cross multiply
    30,880.71x = 46,323.80 × 8,694.28
  4. Step 4: Simplify right side
    30,880.71x = 402,752,087.86
  5. Step 5: Solve for x
    x = 402,752,087.86/30,880.71
  6. Step 6: Final answer
    x = 13,042.19

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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.