Home / 28,717.52-39,622.68-16,774.07

Finding the Fourth Proportional to 28,717.52, 39,622.68 and 16,774.07

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Solution

The fourth proportional to 28,717.52, 39,622.68 and 16,774.07 is: 23,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.52 : 39,622.68 = 16,774.07 : x
  2. Step 2: Convert to fraction form
    28,717.52/39,622.68 = 16,774.07/x
  3. Step 3: Cross multiply
    28,717.52x = 39,622.68 × 16,774.07
  4. Step 4: Simplify right side
    28,717.52x = 664,633,409.79
  5. Step 5: Solve for x
    x = 664,633,409.79/28,717.52
  6. Step 6: Final answer
    x = 23,143.83

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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.