Home / 27,910.10-38,516.64-15,163.28

Finding the Fourth Proportional to 27,910.10, 38,516.64 and 15,163.28

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Solution

The fourth proportional to 27,910.10, 38,516.64 and 15,163.28 is: 20,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.10 : 38,516.64 = 15,163.28 : x
  2. Step 2: Convert to fraction form
    27,910.10/38,516.64 = 15,163.28/x
  3. Step 3: Cross multiply
    27,910.10x = 38,516.64 × 15,163.28
  4. Step 4: Simplify right side
    27,910.10x = 584,038,596.98
  5. Step 5: Solve for x
    x = 584,038,596.98/27,910.10
  6. Step 6: Final answer
    x = 20,925.71

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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.