Home / 30,443.75-45,674.85-21,576.24

Finding the Fourth Proportional to 30,443.75, 45,674.85 and 21,576.24

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Solution

The fourth proportional to 30,443.75, 45,674.85 and 21,576.24 is: 32,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.75 : 45,674.85 = 21,576.24 : x
  2. Step 2: Convert to fraction form
    30,443.75/45,674.85 = 21,576.24/x
  3. Step 3: Cross multiply
    30,443.75x = 45,674.85 × 21,576.24
  4. Step 4: Simplify right side
    30,443.75x = 985,491,606.47
  5. Step 5: Solve for x
    x = 985,491,606.47/30,443.75
  6. Step 6: Final answer
    x = 32,370.90

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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.