Home / 28,270.57-42,405.86-9,550.66

Finding the Fourth Proportional to 28,270.57, 42,405.86 and 9,550.66

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Solution

The fourth proportional to 28,270.57, 42,405.86 and 9,550.66 is: 14,325.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.57 : 42,405.86 = 9,550.66 : x
  2. Step 2: Convert to fraction form
    28,270.57/42,405.86 = 9,550.66/x
  3. Step 3: Cross multiply
    28,270.57x = 42,405.86 × 9,550.66
  4. Step 4: Simplify right side
    28,270.57x = 405,003,950.87
  5. Step 5: Solve for x
    x = 405,003,950.87/28,270.57
  6. Step 6: Final answer
    x = 14,325.99

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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.