Home / 28,269.86-42,405.70-14,222.22

Finding the Fourth Proportional to 28,269.86, 42,405.70 and 14,222.22

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Solution

The fourth proportional to 28,269.86, 42,405.70 and 14,222.22 is: 21,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.86 : 42,405.70 = 14,222.22 : x
  2. Step 2: Convert to fraction form
    28,269.86/42,405.70 = 14,222.22/x
  3. Step 3: Cross multiply
    28,269.86x = 42,405.70 × 14,222.22
  4. Step 4: Simplify right side
    28,269.86x = 603,103,194.65
  5. Step 5: Solve for x
    x = 603,103,194.65/28,269.86
  6. Step 6: Final answer
    x = 21,333.79

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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.