Home / 35,640.16-49,177.60-19,721.57

Finding the Fourth Proportional to 35,640.16, 49,177.60 and 19,721.57

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Solution

The fourth proportional to 35,640.16, 49,177.60 and 19,721.57 is: 27,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.16 : 49,177.60 = 19,721.57 : x
  2. Step 2: Convert to fraction form
    35,640.16/49,177.60 = 19,721.57/x
  3. Step 3: Cross multiply
    35,640.16x = 49,177.60 × 19,721.57
  4. Step 4: Simplify right side
    35,640.16x = 969,859,185.64
  5. Step 5: Solve for x
    x = 969,859,185.64/35,640.16
  6. Step 6: Final answer
    x = 27,212.54

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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.