Home / 27,813.63-38,382.83-15,238.38

Finding the Fourth Proportional to 27,813.63, 38,382.83 and 15,238.38

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Solution

The fourth proportional to 27,813.63, 38,382.83 and 15,238.38 is: 21,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,813.63 : 38,382.83 = 15,238.38 : x
  2. Step 2: Convert to fraction form
    27,813.63/38,382.83 = 15,238.38/x
  3. Step 3: Cross multiply
    27,813.63x = 38,382.83 × 15,238.38
  4. Step 4: Simplify right side
    27,813.63x = 584,892,149.02
  5. Step 5: Solve for x
    x = 584,892,149.02/27,813.63
  6. Step 6: Final answer
    x = 21,028.98

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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.