Home / 20,299.84-28,013.69-11,347.33

Finding the Fourth Proportional to 20,299.84, 28,013.69 and 11,347.33

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Solution

The fourth proportional to 20,299.84, 28,013.69 and 11,347.33 is: 15,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.84 : 28,013.69 = 11,347.33 : x
  2. Step 2: Convert to fraction form
    20,299.84/28,013.69 = 11,347.33/x
  3. Step 3: Cross multiply
    20,299.84x = 28,013.69 × 11,347.33
  4. Step 4: Simplify right side
    20,299.84x = 317,880,584.95
  5. Step 5: Solve for x
    x = 317,880,584.95/20,299.84
  6. Step 6: Final answer
    x = 15,659.27

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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.