Home / 20,832.14-28,761.77-18,590.16

Finding the Fourth Proportional to 20,832.14, 28,761.77 and 18,590.16

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Solution

The fourth proportional to 20,832.14, 28,761.77 and 18,590.16 is: 25,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.14 : 28,761.77 = 18,590.16 : x
  2. Step 2: Convert to fraction form
    20,832.14/28,761.77 = 18,590.16/x
  3. Step 3: Cross multiply
    20,832.14x = 28,761.77 × 18,590.16
  4. Step 4: Simplify right side
    20,832.14x = 534,685,906.18
  5. Step 5: Solve for x
    x = 534,685,906.18/20,832.14
  6. Step 6: Final answer
    x = 25,666.39

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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.