Home / 28,640.22-39,508.23-16,699.20

Finding the Fourth Proportional to 28,640.22, 39,508.23 and 16,699.20

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Solution

The fourth proportional to 28,640.22, 39,508.23 and 16,699.20 is: 23,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.22 : 39,508.23 = 16,699.20 : x
  2. Step 2: Convert to fraction form
    28,640.22/39,508.23 = 16,699.20/x
  3. Step 3: Cross multiply
    28,640.22x = 39,508.23 × 16,699.20
  4. Step 4: Simplify right side
    28,640.22x = 659,755,834.42
  5. Step 5: Solve for x
    x = 659,755,834.42/28,640.22
  6. Step 6: Final answer
    x = 23,035.99

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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.