Home / 20,095.07-27,730.67-11,142.54

Finding the Fourth Proportional to 20,095.07, 27,730.67 and 11,142.54

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Solution

The fourth proportional to 20,095.07, 27,730.67 and 11,142.54 is: 15,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.07 : 27,730.67 = 11,142.54 : x
  2. Step 2: Convert to fraction form
    20,095.07/27,730.67 = 11,142.54/x
  3. Step 3: Cross multiply
    20,095.07x = 27,730.67 × 11,142.54
  4. Step 4: Simplify right side
    20,095.07x = 308,990,043.99
  5. Step 5: Solve for x
    x = 308,990,043.99/20,095.07
  6. Step 6: Final answer
    x = 15,376.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.