Home / 28,269.36-42,404.94-14,221.72

Finding the Fourth Proportional to 28,269.36, 42,404.94 and 14,221.72

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Solution

The fourth proportional to 28,269.36, 42,404.94 and 14,221.72 is: 21,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.36 : 42,404.94 = 14,221.72 : x
  2. Step 2: Convert to fraction form
    28,269.36/42,404.94 = 14,221.72/x
  3. Step 3: Cross multiply
    28,269.36x = 42,404.94 × 14,221.72
  4. Step 4: Simplify right side
    28,269.36x = 603,071,183.30
  5. Step 5: Solve for x
    x = 603,071,183.30/28,269.36
  6. Step 6: Final answer
    x = 21,333.03

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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.