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Finding the Fourth Proportional to 30,746.79, 46,120.59 and 8,559.63

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Solution

The fourth proportional to 30,746.79, 46,120.59 and 8,559.63 is: 12,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.79 : 46,120.59 = 8,559.63 : x
  2. Step 2: Convert to fraction form
    30,746.79/46,120.59 = 8,559.63/x
  3. Step 3: Cross multiply
    30,746.79x = 46,120.59 × 8,559.63
  4. Step 4: Simplify right side
    30,746.79x = 394,775,185.78
  5. Step 5: Solve for x
    x = 394,775,185.78/30,746.79
  6. Step 6: Final answer
    x = 12,839.56

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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.