Home / 28,835.76-39,793.38-16,896.72

Finding the Fourth Proportional to 28,835.76, 39,793.38 and 16,896.72

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Solution

The fourth proportional to 28,835.76, 39,793.38 and 16,896.72 is: 23,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.76 : 39,793.38 = 16,896.72 : x
  2. Step 2: Convert to fraction form
    28,835.76/39,793.38 = 16,896.72/x
  3. Step 3: Cross multiply
    28,835.76x = 39,793.38 × 16,896.72
  4. Step 4: Simplify right side
    28,835.76x = 672,377,599.71
  5. Step 5: Solve for x
    x = 672,377,599.71/28,835.76
  6. Step 6: Final answer
    x = 23,317.49

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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.