Home / 19,209.12-28,811.20-6,062.80

Finding the Fourth Proportional to 19,209.12, 28,811.20 and 6,062.80

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Solution

The fourth proportional to 19,209.12, 28,811.20 and 6,062.80 is: 9,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.12 : 28,811.20 = 6,062.80 : x
  2. Step 2: Convert to fraction form
    19,209.12/28,811.20 = 6,062.80/x
  3. Step 3: Cross multiply
    19,209.12x = 28,811.20 × 6,062.80
  4. Step 4: Simplify right side
    19,209.12x = 174,676,543.36
  5. Step 5: Solve for x
    x = 174,676,543.36/19,209.12
  6. Step 6: Final answer
    x = 9,093.42

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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.