Home / 27,676.84-38,184.06-21,305.38

Finding the Fourth Proportional to 27,676.84, 38,184.06 and 21,305.38

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Solution

The fourth proportional to 27,676.84, 38,184.06 and 21,305.38 is: 29,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,676.84 : 38,184.06 = 21,305.38 : x
  2. Step 2: Convert to fraction form
    27,676.84/38,184.06 = 21,305.38/x
  3. Step 3: Cross multiply
    27,676.84x = 38,184.06 × 21,305.38
  4. Step 4: Simplify right side
    27,676.84x = 813,525,908.24
  5. Step 5: Solve for x
    x = 813,525,908.24/27,676.84
  6. Step 6: Final answer
    x = 29,393.74

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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.