Home / 28,118.88-42,157.48-17,022.95

Finding the Fourth Proportional to 28,118.88, 42,157.48 and 17,022.95

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Solution

The fourth proportional to 28,118.88, 42,157.48 and 17,022.95 is: 25,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.88 : 42,157.48 = 17,022.95 : x
  2. Step 2: Convert to fraction form
    28,118.88/42,157.48 = 17,022.95/x
  3. Step 3: Cross multiply
    28,118.88x = 42,157.48 × 17,022.95
  4. Step 4: Simplify right side
    28,118.88x = 717,644,420.82
  5. Step 5: Solve for x
    x = 717,644,420.82/28,118.88
  6. Step 6: Final answer
    x = 25,521.80

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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.