Home / 28,087.80-42,143.97-16,401.06

Finding the Fourth Proportional to 28,087.80, 42,143.97 and 16,401.06

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Solution

The fourth proportional to 28,087.80, 42,143.97 and 16,401.06 is: 24,608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.80 : 42,143.97 = 16,401.06 : x
  2. Step 2: Convert to fraction form
    28,087.80/42,143.97 = 16,401.06/x
  3. Step 3: Cross multiply
    28,087.80x = 42,143.97 × 16,401.06
  4. Step 4: Simplify right side
    28,087.80x = 691,205,780.61
  5. Step 5: Solve for x
    x = 691,205,780.61/28,087.80
  6. Step 6: Final answer
    x = 24,608.75

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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.