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Finding the Fourth Proportional to 30,955.76, 46,427.72 and 8,763.80

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Solution

The fourth proportional to 30,955.76, 46,427.72 and 8,763.80 is: 13,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.76 : 46,427.72 = 8,763.80 : x
  2. Step 2: Convert to fraction form
    30,955.76/46,427.72 = 8,763.80/x
  3. Step 3: Cross multiply
    30,955.76x = 46,427.72 × 8,763.80
  4. Step 4: Simplify right side
    30,955.76x = 406,883,252.54
  5. Step 5: Solve for x
    x = 406,883,252.54/30,955.76
  6. Step 6: Final answer
    x = 13,144.02

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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.