Home / 28,381.18-39,166.08-16,446.82

Finding the Fourth Proportional to 28,381.18, 39,166.08 and 16,446.82

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Solution

The fourth proportional to 28,381.18, 39,166.08 and 16,446.82 is: 22,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.18 : 39,166.08 = 16,446.82 : x
  2. Step 2: Convert to fraction form
    28,381.18/39,166.08 = 16,446.82/x
  3. Step 3: Cross multiply
    28,381.18x = 39,166.08 × 16,446.82
  4. Step 4: Simplify right side
    28,381.18x = 644,157,467.87
  5. Step 5: Solve for x
    x = 644,157,467.87/28,381.18
  6. Step 6: Final answer
    x = 22,696.64

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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.