Home / 28,776.96-39,711.82-16,029.80

Finding the Fourth Proportional to 28,776.96, 39,711.82 and 16,029.80

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Solution

The fourth proportional to 28,776.96, 39,711.82 and 16,029.80 is: 22,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.96 : 39,711.82 = 16,029.80 : x
  2. Step 2: Convert to fraction form
    28,776.96/39,711.82 = 16,029.80/x
  3. Step 3: Cross multiply
    28,776.96x = 39,711.82 × 16,029.80
  4. Step 4: Simplify right side
    28,776.96x = 636,572,532.24
  5. Step 5: Solve for x
    x = 636,572,532.24/28,776.96
  6. Step 6: Final answer
    x = 22,120.91

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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.