Home / 28,085.67-42,107.43-16,990.08

Finding the Fourth Proportional to 28,085.67, 42,107.43 and 16,990.08

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Solution

The fourth proportional to 28,085.67, 42,107.43 and 16,990.08 is: 25,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.67 : 42,107.43 = 16,990.08 : x
  2. Step 2: Convert to fraction form
    28,085.67/42,107.43 = 16,990.08/x
  3. Step 3: Cross multiply
    28,085.67x = 42,107.43 × 16,990.08
  4. Step 4: Simplify right side
    28,085.67x = 715,408,604.29
  5. Step 5: Solve for x
    x = 715,408,604.29/28,085.67
  6. Step 6: Final answer
    x = 25,472.37

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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.