Home / 28,834.19-39,790.28-16,905.48

Finding the Fourth Proportional to 28,834.19, 39,790.28 and 16,905.48

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Solution

The fourth proportional to 28,834.19, 39,790.28 and 16,905.48 is: 23,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,834.19 : 39,790.28 = 16,905.48 : x
  2. Step 2: Convert to fraction form
    28,834.19/39,790.28 = 16,905.48/x
  3. Step 3: Cross multiply
    28,834.19x = 39,790.28 × 16,905.48
  4. Step 4: Simplify right side
    28,834.19x = 672,673,782.73
  5. Step 5: Solve for x
    x = 672,673,782.73/28,834.19
  6. Step 6: Final answer
    x = 23,329.03

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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.