Home / 20,966.13-28,933.25-11,534.49

Finding the Fourth Proportional to 20,966.13, 28,933.25 and 11,534.49

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Solution

The fourth proportional to 20,966.13, 28,933.25 and 11,534.49 is: 15,917.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.13 : 28,933.25 = 11,534.49 : x
  2. Step 2: Convert to fraction form
    20,966.13/28,933.25 = 11,534.49/x
  3. Step 3: Cross multiply
    20,966.13x = 28,933.25 × 11,534.49
  4. Step 4: Simplify right side
    20,966.13x = 333,730,166.96
  5. Step 5: Solve for x
    x = 333,730,166.96/20,966.13
  6. Step 6: Final answer
    x = 15,917.59

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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.