Home / 28,118.55-42,156.82-17,022.57

Finding the Fourth Proportional to 28,118.55, 42,156.82 and 17,022.57

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Solution

The fourth proportional to 28,118.55, 42,156.82 and 17,022.57 is: 25,521.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.55 : 42,156.82 = 17,022.57 : x
  2. Step 2: Convert to fraction form
    28,118.55/42,156.82 = 17,022.57/x
  3. Step 3: Cross multiply
    28,118.55x = 42,156.82 × 17,022.57
  4. Step 4: Simplify right side
    28,118.55x = 717,617,282.62
  5. Step 5: Solve for x
    x = 717,617,282.62/28,118.55
  6. Step 6: Final answer
    x = 25,521.13

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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.