Home / 21,037.65-29,028.88-13,076.97

Finding the Fourth Proportional to 21,037.65, 29,028.88 and 13,076.97

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Solution

The fourth proportional to 21,037.65, 29,028.88 and 13,076.97 is: 18,044.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.65 : 29,028.88 = 13,076.97 : x
  2. Step 2: Convert to fraction form
    21,037.65/29,028.88 = 13,076.97/x
  3. Step 3: Cross multiply
    21,037.65x = 29,028.88 × 13,076.97
  4. Step 4: Simplify right side
    21,037.65x = 379,609,792.89
  5. Step 5: Solve for x
    x = 379,609,792.89/21,037.65
  6. Step 6: Final answer
    x = 18,044.31

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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.