Home / 28,169.36-38,874.24-16,230.68

Finding the Fourth Proportional to 28,169.36, 38,874.24 and 16,230.68

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Solution

The fourth proportional to 28,169.36, 38,874.24 and 16,230.68 is: 22,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.36 : 38,874.24 = 16,230.68 : x
  2. Step 2: Convert to fraction form
    28,169.36/38,874.24 = 16,230.68/x
  3. Step 3: Cross multiply
    28,169.36x = 38,874.24 × 16,230.68
  4. Step 4: Simplify right side
    28,169.36x = 630,955,349.68
  5. Step 5: Solve for x
    x = 630,955,349.68/28,169.36
  6. Step 6: Final answer
    x = 22,398.64

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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.