Home / 28,310.36-42,484.04-10,780.36

Finding the Fourth Proportional to 28,310.36, 42,484.04 and 10,780.36

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Solution

The fourth proportional to 28,310.36, 42,484.04 and 10,780.36 is: 16,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.36 : 42,484.04 = 10,780.36 : x
  2. Step 2: Convert to fraction form
    28,310.36/42,484.04 = 10,780.36/x
  3. Step 3: Cross multiply
    28,310.36x = 42,484.04 × 10,780.36
  4. Step 4: Simplify right side
    28,310.36x = 457,993,245.45
  5. Step 5: Solve for x
    x = 457,993,245.45/28,310.36
  6. Step 6: Final answer
    x = 16,177.58

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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.