Home / 33,200.10-49,800.15-12,420.90

Finding the Fourth Proportional to 33,200.10, 49,800.15 and 12,420.90

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Solution

The fourth proportional to 33,200.10, 49,800.15 and 12,420.90 is: 18,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,200.10 : 49,800.15 = 12,420.90 : x
  2. Step 2: Convert to fraction form
    33,200.10/49,800.15 = 12,420.90/x
  3. Step 3: Cross multiply
    33,200.10x = 49,800.15 × 12,420.90
  4. Step 4: Simplify right side
    33,200.10x = 618,562,683.14
  5. Step 5: Solve for x
    x = 618,562,683.14/33,200.10
  6. Step 6: Final answer
    x = 18,631.35

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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.