Home / 20,699.01-28,565.33-11,267.91

Finding the Fourth Proportional to 20,699.01, 28,565.33 and 11,267.91

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Solution

The fourth proportional to 20,699.01, 28,565.33 and 11,267.91 is: 15,550.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.01 : 28,565.33 = 11,267.91 : x
  2. Step 2: Convert to fraction form
    20,699.01/28,565.33 = 11,267.91/x
  3. Step 3: Cross multiply
    20,699.01x = 28,565.33 × 11,267.91
  4. Step 4: Simplify right side
    20,699.01x = 321,871,511.22
  5. Step 5: Solve for x
    x = 321,871,511.22/20,699.01
  6. Step 6: Final answer
    x = 15,550.09

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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.