Home / 16,824.40-25,218.60-5,720.80

Finding the Fourth Proportional to 16,824.40, 25,218.60 and 5,720.80

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Solution

The fourth proportional to 16,824.40, 25,218.60 and 5,720.80 is: 8,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,824.40 : 25,218.60 = 5,720.80 : x
  2. Step 2: Convert to fraction form
    16,824.40/25,218.60 = 5,720.80/x
  3. Step 3: Cross multiply
    16,824.40x = 25,218.60 × 5,720.80
  4. Step 4: Simplify right side
    16,824.40x = 144,270,566.88
  5. Step 5: Solve for x
    x = 144,270,566.88/16,824.40
  6. Step 6: Final answer
    x = 8,575.08

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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.