Home / 35,728.80-49,305.76-19,813.44

Finding the Fourth Proportional to 35,728.80, 49,305.76 and 19,813.44

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Solution

The fourth proportional to 35,728.80, 49,305.76 and 19,813.44 is: 27,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,728.80 : 49,305.76 = 19,813.44 : x
  2. Step 2: Convert to fraction form
    35,728.80/49,305.76 = 19,813.44/x
  3. Step 3: Cross multiply
    35,728.80x = 49,305.76 × 19,813.44
  4. Step 4: Simplify right side
    35,728.80x = 976,916,717.41
  5. Step 5: Solve for x
    x = 976,916,717.41/35,728.80
  6. Step 6: Final answer
    x = 27,342.56

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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.