Home / 30,628.50-45,934.54-8,436.60

Finding the Fourth Proportional to 30,628.50, 45,934.54 and 8,436.60

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Solution

The fourth proportional to 30,628.50, 45,934.54 and 8,436.60 is: 12,652.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628.50 : 45,934.54 = 8,436.60 : x
  2. Step 2: Convert to fraction form
    30,628.50/45,934.54 = 8,436.60/x
  3. Step 3: Cross multiply
    30,628.50x = 45,934.54 × 8,436.60
  4. Step 4: Simplify right side
    30,628.50x = 387,531,340.16
  5. Step 5: Solve for x
    x = 387,531,340.16/30,628.50
  6. Step 6: Final answer
    x = 12,652.64

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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.