Home / 28,193.88-42,192.93-17,515.86

Finding the Fourth Proportional to 28,193.88, 42,192.93 and 17,515.86

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Solution

The fourth proportional to 28,193.88, 42,192.93 and 17,515.86 is: 26,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.88 : 42,192.93 = 17,515.86 : x
  2. Step 2: Convert to fraction form
    28,193.88/42,192.93 = 17,515.86/x
  3. Step 3: Cross multiply
    28,193.88x = 42,192.93 × 17,515.86
  4. Step 4: Simplify right side
    28,193.88x = 739,045,454.87
  5. Step 5: Solve for x
    x = 739,045,454.87/28,193.88
  6. Step 6: Final answer
    x = 26,212.97

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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.