Home / 28,243.72-42,330.30-17,858.44

Finding the Fourth Proportional to 28,243.72, 42,330.30 and 17,858.44

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Solution

The fourth proportional to 28,243.72, 42,330.30 and 17,858.44 is: 26,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.72 : 42,330.30 = 17,858.44 : x
  2. Step 2: Convert to fraction form
    28,243.72/42,330.30 = 17,858.44/x
  3. Step 3: Cross multiply
    28,243.72x = 42,330.30 × 17,858.44
  4. Step 4: Simplify right side
    28,243.72x = 755,953,122.73
  5. Step 5: Solve for x
    x = 755,953,122.73/28,243.72
  6. Step 6: Final answer
    x = 26,765.35

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1.5x scale

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.