Home / 20,072.82-29,966.02-18,738.74

Finding the Fourth Proportional to 20,072.82, 29,966.02 and 18,738.74

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Solution

The fourth proportional to 20,072.82, 29,966.02 and 18,738.74 is: 27,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.82 : 29,966.02 = 18,738.74 : x
  2. Step 2: Convert to fraction form
    20,072.82/29,966.02 = 18,738.74/x
  3. Step 3: Cross multiply
    20,072.82x = 29,966.02 × 18,738.74
  4. Step 4: Simplify right side
    20,072.82x = 561,525,457.61
  5. Step 5: Solve for x
    x = 561,525,457.61/20,072.82
  6. Step 6: Final answer
    x = 27,974.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.