Home / 36,981.09-51,037.48-21,878.61

Finding the Fourth Proportional to 36,981.09, 51,037.48 and 21,878.61

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Solution

The fourth proportional to 36,981.09, 51,037.48 and 21,878.61 is: 30,194.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.09 : 51,037.48 = 21,878.61 : x
  2. Step 2: Convert to fraction form
    36,981.09/51,037.48 = 21,878.61/x
  3. Step 3: Cross multiply
    36,981.09x = 51,037.48 × 21,878.61
  4. Step 4: Simplify right side
    36,981.09x = 1,116,628,833.19
  5. Step 5: Solve for x
    x = 1,116,628,833.19/36,981.09
  6. Step 6: Final answer
    x = 30,194.59

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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.