Home / 20,699.07-28,564.14-11,267.43

Finding the Fourth Proportional to 20,699.07, 28,564.14 and 11,267.43

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Solution

The fourth proportional to 20,699.07, 28,564.14 and 11,267.43 is: 15,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.07 : 28,564.14 = 11,267.43 : x
  2. Step 2: Convert to fraction form
    20,699.07/28,564.14 = 11,267.43/x
  3. Step 3: Cross multiply
    20,699.07x = 28,564.14 × 11,267.43
  4. Step 4: Simplify right side
    20,699.07x = 321,844,447.96
  5. Step 5: Solve for x
    x = 321,844,447.96/20,699.07
  6. Step 6: Final answer
    x = 15,548.74

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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.