Home / 35,772.09-49,367.78-20,665.38

Finding the Fourth Proportional to 35,772.09, 49,367.78 and 20,665.38

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Solution

The fourth proportional to 35,772.09, 49,367.78 and 20,665.38 is: 28,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,772.09 : 49,367.78 = 20,665.38 : x
  2. Step 2: Convert to fraction form
    35,772.09/49,367.78 = 20,665.38/x
  3. Step 3: Cross multiply
    35,772.09x = 49,367.78 × 20,665.38
  4. Step 4: Simplify right side
    35,772.09x = 1,020,203,933.46
  5. Step 5: Solve for x
    x = 1,020,203,933.46/35,772.09
  6. Step 6: Final answer
    x = 28,519.55

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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.