Home / 28,169.90-38,873.40-16,845.68

Finding the Fourth Proportional to 28,169.90, 38,873.40 and 16,845.68

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Solution

The fourth proportional to 28,169.90, 38,873.40 and 16,845.68 is: 23,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.90 : 38,873.40 = 16,845.68 : x
  2. Step 2: Convert to fraction form
    28,169.90/38,873.40 = 16,845.68/x
  3. Step 3: Cross multiply
    28,169.90x = 38,873.40 × 16,845.68
  4. Step 4: Simplify right side
    28,169.90x = 654,848,856.91
  5. Step 5: Solve for x
    x = 654,848,856.91/28,169.90
  6. Step 6: Final answer
    x = 23,246.40

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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.