Home / 20,901.84-28,844.46-11,470.38

Finding the Fourth Proportional to 20,901.84, 28,844.46 and 11,470.38

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Solution

The fourth proportional to 20,901.84, 28,844.46 and 11,470.38 is: 15,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,901.84 : 28,844.46 = 11,470.38 : x
  2. Step 2: Convert to fraction form
    20,901.84/28,844.46 = 11,470.38/x
  3. Step 3: Cross multiply
    20,901.84x = 28,844.46 × 11,470.38
  4. Step 4: Simplify right side
    20,901.84x = 330,856,917.09
  5. Step 5: Solve for x
    x = 330,856,917.09/20,901.84
  6. Step 6: Final answer
    x = 15,829.08

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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.