Home / 28,838.36-39,800.76-16,906.40

Finding the Fourth Proportional to 28,838.36, 39,800.76 and 16,906.40

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Solution

The fourth proportional to 28,838.36, 39,800.76 and 16,906.40 is: 23,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.36 : 39,800.76 = 16,906.40 : x
  2. Step 2: Convert to fraction form
    28,838.36/39,800.76 = 16,906.40/x
  3. Step 3: Cross multiply
    28,838.36x = 39,800.76 × 16,906.40
  4. Step 4: Simplify right side
    28,838.36x = 672,887,568.86
  5. Step 5: Solve for x
    x = 672,887,568.86/28,838.36
  6. Step 6: Final answer
    x = 23,333.07

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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.