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Finding the Fourth Proportional to 40,329.20, 60,485.70 and 19,269.20

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Solution

The fourth proportional to 40,329.20, 60,485.70 and 19,269.20 is: 28,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,329.20 : 60,485.70 = 19,269.20 : x
  2. Step 2: Convert to fraction form
    40,329.20/60,485.70 = 19,269.20/x
  3. Step 3: Cross multiply
    40,329.20x = 60,485.70 × 19,269.20
  4. Step 4: Simplify right side
    40,329.20x = 1,165,511,050.44
  5. Step 5: Solve for x
    x = 1,165,511,050.44/40,329.20
  6. Step 6: Final answer
    x = 28,899.93

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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.