Home / 19,982.60-29,973.90-16,872.20

Finding the Fourth Proportional to 19,982.60, 29,973.90 and 16,872.20

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Solution

The fourth proportional to 19,982.60, 29,973.90 and 16,872.20 is: 25,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.60 : 29,973.90 = 16,872.20 : x
  2. Step 2: Convert to fraction form
    19,982.60/29,973.90 = 16,872.20/x
  3. Step 3: Cross multiply
    19,982.60x = 29,973.90 × 16,872.20
  4. Step 4: Simplify right side
    19,982.60x = 505,725,635.58
  5. Step 5: Solve for x
    x = 505,725,635.58/19,982.60
  6. Step 6: Final answer
    x = 25,308.30

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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.