Home / 30,770.25-45,913.86-28,889.43

Finding the Fourth Proportional to 30,770.25, 45,913.86 and 28,889.43

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Solution

The fourth proportional to 30,770.25, 45,913.86 and 28,889.43 is: 43,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,770.25 : 45,913.86 = 28,889.43 : x
  2. Step 2: Convert to fraction form
    30,770.25/45,913.86 = 28,889.43/x
  3. Step 3: Cross multiply
    30,770.25x = 45,913.86 × 28,889.43
  4. Step 4: Simplify right side
    30,770.25x = 1,326,425,244.50
  5. Step 5: Solve for x
    x = 1,326,425,244.50/30,770.25
  6. Step 6: Final answer
    x = 43,107.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.