Home / 35,728.45-49,302.03-19,812.85

Finding the Fourth Proportional to 35,728.45, 49,302.03 and 19,812.85

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Solution

The fourth proportional to 35,728.45, 49,302.03 and 19,812.85 is: 27,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,728.45 : 49,302.03 = 19,812.85 : x
  2. Step 2: Convert to fraction form
    35,728.45/49,302.03 = 19,812.85/x
  3. Step 3: Cross multiply
    35,728.45x = 49,302.03 × 19,812.85
  4. Step 4: Simplify right side
    35,728.45x = 976,813,725.09
  5. Step 5: Solve for x
    x = 976,813,725.09/35,728.45
  6. Step 6: Final answer
    x = 27,339.94

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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.