Home / 28,375.65-39,156.99-16,442.83

Finding the Fourth Proportional to 28,375.65, 39,156.99 and 16,442.83

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Solution

The fourth proportional to 28,375.65, 39,156.99 and 16,442.83 is: 22,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.65 : 39,156.99 = 16,442.83 : x
  2. Step 2: Convert to fraction form
    28,375.65/39,156.99 = 16,442.83/x
  3. Step 3: Cross multiply
    28,375.65x = 39,156.99 × 16,442.83
  4. Step 4: Simplify right side
    28,375.65x = 643,851,729.88
  5. Step 5: Solve for x
    x = 643,851,729.88/28,375.65
  6. Step 6: Final answer
    x = 22,690.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.