Home / 36,128.51-49,874.07-21,015.66

Finding the Fourth Proportional to 36,128.51, 49,874.07 and 21,015.66

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Solution

The fourth proportional to 36,128.51, 49,874.07 and 21,015.66 is: 29,011.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.51 : 49,874.07 = 21,015.66 : x
  2. Step 2: Convert to fraction form
    36,128.51/49,874.07 = 21,015.66/x
  3. Step 3: Cross multiply
    36,128.51x = 49,874.07 × 21,015.66
  4. Step 4: Simplify right side
    36,128.51x = 1,048,136,497.94
  5. Step 5: Solve for x
    x = 1,048,136,497.94/36,128.51
  6. Step 6: Final answer
    x = 29,011.34

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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.