Home / 30,481.31-45,697.36-28,020.94

Finding the Fourth Proportional to 30,481.31, 45,697.36 and 28,020.94

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Solution

The fourth proportional to 30,481.31, 45,697.36 and 28,020.94 is: 42,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.31 : 45,697.36 = 28,020.94 : x
  2. Step 2: Convert to fraction form
    30,481.31/45,697.36 = 28,020.94/x
  3. Step 3: Cross multiply
    30,481.31x = 45,697.36 × 28,020.94
  4. Step 4: Simplify right side
    30,481.31x = 1,280,482,754.23
  5. Step 5: Solve for x
    x = 1,280,482,754.23/30,481.31
  6. Step 6: Final answer
    x = 42,008.78

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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.