Home / 30,287.88-45,439.20-10,566.60

Finding the Fourth Proportional to 30,287.88, 45,439.20 and 10,566.60

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Solution

The fourth proportional to 30,287.88, 45,439.20 and 10,566.60 is: 15,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.88 : 45,439.20 = 10,566.60 : x
  2. Step 2: Convert to fraction form
    30,287.88/45,439.20 = 10,566.60/x
  3. Step 3: Cross multiply
    30,287.88x = 45,439.20 × 10,566.60
  4. Step 4: Simplify right side
    30,287.88x = 480,137,850.72
  5. Step 5: Solve for x
    x = 480,137,850.72/30,287.88
  6. Step 6: Final answer
    x = 15,852.47

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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.