Home / 27,849.94-38,428.10-15,744.89

Finding the Fourth Proportional to 27,849.94, 38,428.10 and 15,744.89

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Solution

The fourth proportional to 27,849.94, 38,428.10 and 15,744.89 is: 21,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.94 : 38,428.10 = 15,744.89 : x
  2. Step 2: Convert to fraction form
    27,849.94/38,428.10 = 15,744.89/x
  3. Step 3: Cross multiply
    27,849.94x = 38,428.10 × 15,744.89
  4. Step 4: Simplify right side
    27,849.94x = 605,046,207.41
  5. Step 5: Solve for x
    x = 605,046,207.41/27,849.94
  6. Step 6: Final answer
    x = 21,725.22

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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.