Home / 28,755.38-39,666.18-17,267.36

Finding the Fourth Proportional to 28,755.38, 39,666.18 and 17,267.36

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Solution

The fourth proportional to 28,755.38, 39,666.18 and 17,267.36 is: 23,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.38 : 39,666.18 = 17,267.36 : x
  2. Step 2: Convert to fraction form
    28,755.38/39,666.18 = 17,267.36/x
  3. Step 3: Cross multiply
    28,755.38x = 39,666.18 × 17,267.36
  4. Step 4: Simplify right side
    28,755.38x = 684,930,209.88
  5. Step 5: Solve for x
    x = 684,930,209.88/28,755.38
  6. Step 6: Final answer
    x = 23,819.20

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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.