Home / 30,266.76-45,437.94-20,449.56

Finding the Fourth Proportional to 30,266.76, 45,437.94 and 20,449.56

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Solution

The fourth proportional to 30,266.76, 45,437.94 and 20,449.56 is: 30,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266.76 : 45,437.94 = 20,449.56 : x
  2. Step 2: Convert to fraction form
    30,266.76/45,437.94 = 20,449.56/x
  3. Step 3: Cross multiply
    30,266.76x = 45,437.94 × 20,449.56
  4. Step 4: Simplify right side
    30,266.76x = 929,185,880.31
  5. Step 5: Solve for x
    x = 929,185,880.31/30,266.76
  6. Step 6: Final answer
    x = 30,699.88

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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.