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Finding the Fourth Proportional to 30,685.60, 46,028.40 and 10,964.80

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Solution

The fourth proportional to 30,685.60, 46,028.40 and 10,964.80 is: 16,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,685.60 : 46,028.40 = 10,964.80 : x
  2. Step 2: Convert to fraction form
    30,685.60/46,028.40 = 10,964.80/x
  3. Step 3: Cross multiply
    30,685.60x = 46,028.40 × 10,964.80
  4. Step 4: Simplify right side
    30,685.60x = 504,692,200.32
  5. Step 5: Solve for x
    x = 504,692,200.32/30,685.60
  6. Step 6: Final answer
    x = 16,447.20

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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.