Home / 28,389.54-39,175.66-16,450.74

Finding the Fourth Proportional to 28,389.54, 39,175.66 and 16,450.74

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Solution

The fourth proportional to 28,389.54, 39,175.66 and 16,450.74 is: 22,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.54 : 39,175.66 = 16,450.74 : x
  2. Step 2: Convert to fraction form
    28,389.54/39,175.66 = 16,450.74/x
  3. Step 3: Cross multiply
    28,389.54x = 39,175.66 × 16,450.74
  4. Step 4: Simplify right side
    28,389.54x = 644,468,596.99
  5. Step 5: Solve for x
    x = 644,468,596.99/28,389.54
  6. Step 6: Final answer
    x = 22,700.92

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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.