Home / 28,389.91-39,169.40-16,450.94

Finding the Fourth Proportional to 28,389.91, 39,169.40 and 16,450.94

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Solution

The fourth proportional to 28,389.91, 39,169.40 and 16,450.94 is: 22,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.91 : 39,169.40 = 16,450.94 : x
  2. Step 2: Convert to fraction form
    28,389.91/39,169.40 = 16,450.94/x
  3. Step 3: Cross multiply
    28,389.91x = 39,169.40 × 16,450.94
  4. Step 4: Simplify right side
    28,389.91x = 644,373,449.24
  5. Step 5: Solve for x
    x = 644,373,449.24/28,389.91
  6. Step 6: Final answer
    x = 22,697.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.