Home / 16,280.20-24,401.10-12,171.40

Finding the Fourth Proportional to 16,280.20, 24,401.10 and 12,171.40

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Solution

The fourth proportional to 16,280.20, 24,401.10 and 12,171.40 is: 18,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,280.20 : 24,401.10 = 12,171.40 : x
  2. Step 2: Convert to fraction form
    16,280.20/24,401.10 = 12,171.40/x
  3. Step 3: Cross multiply
    16,280.20x = 24,401.10 × 12,171.40
  4. Step 4: Simplify right side
    16,280.20x = 296,995,548.54
  5. Step 5: Solve for x
    x = 296,995,548.54/16,280.20
  6. Step 6: Final answer
    x = 18,242.75

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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.