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Finding the Fourth Proportional to 32,777.60, 45,230.40 and 18,627.20

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Solution

The fourth proportional to 32,777.60, 45,230.40 and 18,627.20 is: 25,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,777.60 : 45,230.40 = 18,627.20 : x
  2. Step 2: Convert to fraction form
    32,777.60/45,230.40 = 18,627.20/x
  3. Step 3: Cross multiply
    32,777.60x = 45,230.40 × 18,627.20
  4. Step 4: Simplify right side
    32,777.60x = 842,515,706.88
  5. Step 5: Solve for x
    x = 842,515,706.88/32,777.60
  6. Step 6: Final answer
    x = 25,704.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.