Home / 30,629.50-45,936.04-8,437.60

Finding the Fourth Proportional to 30,629.50, 45,936.04 and 8,437.60

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Solution

The fourth proportional to 30,629.50, 45,936.04 and 8,437.60 is: 12,654.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.50 : 45,936.04 = 8,437.60 : x
  2. Step 2: Convert to fraction form
    30,629.50/45,936.04 = 8,437.60/x
  3. Step 3: Cross multiply
    30,629.50x = 45,936.04 × 8,437.60
  4. Step 4: Simplify right side
    30,629.50x = 387,589,931.10
  5. Step 5: Solve for x
    x = 387,589,931.10/30,629.50
  6. Step 6: Final answer
    x = 12,654.14

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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.