Home / 27,878.18-38,454.39-16,539.65

Finding the Fourth Proportional to 27,878.18, 38,454.39 and 16,539.65

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Solution

The fourth proportional to 27,878.18, 38,454.39 and 16,539.65 is: 22,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.18 : 38,454.39 = 16,539.65 : x
  2. Step 2: Convert to fraction form
    27,878.18/38,454.39 = 16,539.65/x
  3. Step 3: Cross multiply
    27,878.18x = 38,454.39 × 16,539.65
  4. Step 4: Simplify right side
    27,878.18x = 636,022,151.56
  5. Step 5: Solve for x
    x = 636,022,151.56/27,878.18
  6. Step 6: Final answer
    x = 22,814.34

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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.