Home / 30,278.35-45,399.30-15,516.10

Finding the Fourth Proportional to 30,278.35, 45,399.30 and 15,516.10

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Solution

The fourth proportional to 30,278.35, 45,399.30 and 15,516.10 is: 23,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.35 : 45,399.30 = 15,516.10 : x
  2. Step 2: Convert to fraction form
    30,278.35/45,399.30 = 15,516.10/x
  3. Step 3: Cross multiply
    30,278.35x = 45,399.30 × 15,516.10
  4. Step 4: Simplify right side
    30,278.35x = 704,420,078.73
  5. Step 5: Solve for x
    x = 704,420,078.73/30,278.35
  6. Step 6: Final answer
    x = 23,264.81

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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.