Home / 28,930.60-43,420.56-20,630.96

Finding the Fourth Proportional to 28,930.60, 43,420.56 and 20,630.96

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Solution

The fourth proportional to 28,930.60, 43,420.56 and 20,630.96 is: 30,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.60 : 43,420.56 = 20,630.96 : x
  2. Step 2: Convert to fraction form
    28,930.60/43,420.56 = 20,630.96/x
  3. Step 3: Cross multiply
    28,930.60x = 43,420.56 × 20,630.96
  4. Step 4: Simplify right side
    28,930.60x = 895,807,836.54
  5. Step 5: Solve for x
    x = 895,807,836.54/28,930.60
  6. Step 6: Final answer
    x = 30,964.03

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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.