Home / 20,923.52-28,874.48-11,492.72

Finding the Fourth Proportional to 20,923.52, 28,874.48 and 11,492.72

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Solution

The fourth proportional to 20,923.52, 28,874.48 and 11,492.72 is: 15,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.52 : 28,874.48 = 11,492.72 : x
  2. Step 2: Convert to fraction form
    20,923.52/28,874.48 = 11,492.72/x
  3. Step 3: Cross multiply
    20,923.52x = 28,874.48 × 11,492.72
  4. Step 4: Simplify right side
    20,923.52x = 331,846,313.79
  5. Step 5: Solve for x
    x = 331,846,313.79/20,923.52
  6. Step 6: Final answer
    x = 15,859.97

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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.