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Finding the Fourth Proportional to 30,361.80, 45,533.34 and 10,636.68

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Solution

The fourth proportional to 30,361.80, 45,533.34 and 10,636.68 is: 15,951.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.80 : 45,533.34 = 10,636.68 : x
  2. Step 2: Convert to fraction form
    30,361.80/45,533.34 = 10,636.68/x
  3. Step 3: Cross multiply
    30,361.80x = 45,533.34 × 10,636.68
  4. Step 4: Simplify right side
    30,361.80x = 484,323,566.91
  5. Step 5: Solve for x
    x = 484,323,566.91/30,361.80
  6. Step 6: Final answer
    x = 15,951.74

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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.