Home / 28,381.10-39,165.89-16,451.35

Finding the Fourth Proportional to 28,381.10, 39,165.89 and 16,451.35

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Solution

The fourth proportional to 28,381.10, 39,165.89 and 16,451.35 is: 22,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.10 : 39,165.89 = 16,451.35 : x
  2. Step 2: Convert to fraction form
    28,381.10/39,165.89 = 16,451.35/x
  3. Step 3: Cross multiply
    28,381.10x = 39,165.89 × 16,451.35
  4. Step 4: Simplify right side
    28,381.10x = 644,331,584.28
  5. Step 5: Solve for x
    x = 644,331,584.28/28,381.10
  6. Step 6: Final answer
    x = 22,702.84

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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.