Home / 30,104.88-45,159.84-12,576.24

Finding the Fourth Proportional to 30,104.88, 45,159.84 and 12,576.24

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Solution

The fourth proportional to 30,104.88, 45,159.84 and 12,576.24 is: 18,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,104.88 : 45,159.84 = 12,576.24 : x
  2. Step 2: Convert to fraction form
    30,104.88/45,159.84 = 12,576.24/x
  3. Step 3: Cross multiply
    30,104.88x = 45,159.84 × 12,576.24
  4. Step 4: Simplify right side
    30,104.88x = 567,940,986.20
  5. Step 5: Solve for x
    x = 567,940,986.20/30,104.88
  6. Step 6: Final answer
    x = 18,865.41

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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.