Home / 27,878.43-38,454.73-16,539.90

Finding the Fourth Proportional to 27,878.43, 38,454.73 and 16,539.90

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Solution

The fourth proportional to 27,878.43, 38,454.73 and 16,539.90 is: 22,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.43 : 38,454.73 = 16,539.90 : x
  2. Step 2: Convert to fraction form
    27,878.43/38,454.73 = 16,539.90/x
  3. Step 3: Cross multiply
    27,878.43x = 38,454.73 × 16,539.90
  4. Step 4: Simplify right side
    27,878.43x = 636,037,388.73
  5. Step 5: Solve for x
    x = 636,037,388.73/27,878.43
  6. Step 6: Final answer
    x = 22,814.68

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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.