Home / 28,381.21-39,166.07-16,451.46

Finding the Fourth Proportional to 28,381.21, 39,166.07 and 16,451.46

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Solution

The fourth proportional to 28,381.21, 39,166.07 and 16,451.46 is: 22,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.21 : 39,166.07 = 16,451.46 : x
  2. Step 2: Convert to fraction form
    28,381.21/39,166.07 = 16,451.46/x
  3. Step 3: Cross multiply
    28,381.21x = 39,166.07 × 16,451.46
  4. Step 4: Simplify right side
    28,381.21x = 644,339,033.96
  5. Step 5: Solve for x
    x = 644,339,033.96/28,381.21
  6. Step 6: Final answer
    x = 22,703.02

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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.