Home / 27,963.12-38,588.70-16,638.12

Finding the Fourth Proportional to 27,963.12, 38,588.70 and 16,638.12

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Solution

The fourth proportional to 27,963.12, 38,588.70 and 16,638.12 is: 22,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.12 : 38,588.70 = 16,638.12 : x
  2. Step 2: Convert to fraction form
    27,963.12/38,588.70 = 16,638.12/x
  3. Step 3: Cross multiply
    27,963.12x = 38,588.70 × 16,638.12
  4. Step 4: Simplify right side
    27,963.12x = 642,043,421.24
  5. Step 5: Solve for x
    x = 642,043,421.24/27,963.12
  6. Step 6: Final answer
    x = 22,960.36

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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.