Home / 28,171.90-38,871.38-16,232.09

Finding the Fourth Proportional to 28,171.90, 38,871.38 and 16,232.09

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Solution

The fourth proportional to 28,171.90, 38,871.38 and 16,232.09 is: 22,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.90 : 38,871.38 = 16,232.09 : x
  2. Step 2: Convert to fraction form
    28,171.90/38,871.38 = 16,232.09/x
  3. Step 3: Cross multiply
    28,171.90x = 38,871.38 × 16,232.09
  4. Step 4: Simplify right side
    28,171.90x = 630,963,657.42
  5. Step 5: Solve for x
    x = 630,963,657.42/28,171.90
  6. Step 6: Final answer
    x = 22,396.92

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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.