Home / 28,445.32-42,647.82-10,911.88

Finding the Fourth Proportional to 28,445.32, 42,647.82 and 10,911.88

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Solution

The fourth proportional to 28,445.32, 42,647.82 and 10,911.88 is: 16,360.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.32 : 42,647.82 = 10,911.88 : x
  2. Step 2: Convert to fraction form
    28,445.32/42,647.82 = 10,911.88/x
  3. Step 3: Cross multiply
    28,445.32x = 42,647.82 × 10,911.88
  4. Step 4: Simplify right side
    28,445.32x = 465,367,894.10
  5. Step 5: Solve for x
    x = 465,367,894.10/28,445.32
  6. Step 6: Final answer
    x = 16,360.09

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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.