Home / 28,732.40-39,648.84-16,156.88

Finding the Fourth Proportional to 28,732.40, 39,648.84 and 16,156.88

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Solution

The fourth proportional to 28,732.40, 39,648.84 and 16,156.88 is: 22,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.40 : 39,648.84 = 16,156.88 : x
  2. Step 2: Convert to fraction form
    28,732.40/39,648.84 = 16,156.88/x
  3. Step 3: Cross multiply
    28,732.40x = 39,648.84 × 16,156.88
  4. Step 4: Simplify right side
    28,732.40x = 640,601,550.02
  5. Step 5: Solve for x
    x = 640,601,550.02/28,732.40
  6. Step 6: Final answer
    x = 22,295.44

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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.