Home / 27,711.84-38,243.29-16,391.03

Finding the Fourth Proportional to 27,711.84, 38,243.29 and 16,391.03

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Solution

The fourth proportional to 27,711.84, 38,243.29 and 16,391.03 is: 22,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.84 : 38,243.29 = 16,391.03 : x
  2. Step 2: Convert to fraction form
    27,711.84/38,243.29 = 16,391.03/x
  3. Step 3: Cross multiply
    27,711.84x = 38,243.29 × 16,391.03
  4. Step 4: Simplify right side
    27,711.84x = 626,846,968.32
  5. Step 5: Solve for x
    x = 626,846,968.32/27,711.84
  6. Step 6: Final answer
    x = 22,620.19

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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.