Home / 27,813.11-38,381.85-15,237.86

Finding the Fourth Proportional to 27,813.11, 38,381.85 and 15,237.86

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Solution

The fourth proportional to 27,813.11, 38,381.85 and 15,237.86 is: 21,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,813.11 : 38,381.85 = 15,237.86 : x
  2. Step 2: Convert to fraction form
    27,813.11/38,381.85 = 15,237.86/x
  3. Step 3: Cross multiply
    27,813.11x = 38,381.85 × 15,237.86
  4. Step 4: Simplify right side
    27,813.11x = 584,857,064.93
  5. Step 5: Solve for x
    x = 584,857,064.93/27,813.11
  6. Step 6: Final answer
    x = 21,028.11

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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.