Home / 16,872.20-25,308.30-16,386.20

Finding the Fourth Proportional to 16,872.20, 25,308.30 and 16,386.20

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Solution

The fourth proportional to 16,872.20, 25,308.30 and 16,386.20 is: 24,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.20 : 25,308.30 = 16,386.20 : x
  2. Step 2: Convert to fraction form
    16,872.20/25,308.30 = 16,386.20/x
  3. Step 3: Cross multiply
    16,872.20x = 25,308.30 × 16,386.20
  4. Step 4: Simplify right side
    16,872.20x = 414,706,865.46
  5. Step 5: Solve for x
    x = 414,706,865.46/16,872.20
  6. Step 6: Final answer
    x = 24,579.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.