Home / 28,380.65-39,165.29-16,450.90

Finding the Fourth Proportional to 28,380.65, 39,165.29 and 16,450.90

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Solution

The fourth proportional to 28,380.65, 39,165.29 and 16,450.90 is: 22,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.65 : 39,165.29 = 16,450.90 : x
  2. Step 2: Convert to fraction form
    28,380.65/39,165.29 = 16,450.90/x
  3. Step 3: Cross multiply
    28,380.65x = 39,165.29 × 16,450.90
  4. Step 4: Simplify right side
    28,380.65x = 644,304,463.63
  5. Step 5: Solve for x
    x = 644,304,463.63/28,380.65
  6. Step 6: Final answer
    x = 22,702.25

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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.