Home / 20,069.28-27,693.70-11,116.59

Finding the Fourth Proportional to 20,069.28, 27,693.70 and 11,116.59

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Solution

The fourth proportional to 20,069.28, 27,693.70 and 11,116.59 is: 15,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.28 : 27,693.70 = 11,116.59 : x
  2. Step 2: Convert to fraction form
    20,069.28/27,693.70 = 11,116.59/x
  3. Step 3: Cross multiply
    20,069.28x = 27,693.70 × 11,116.59
  4. Step 4: Simplify right side
    20,069.28x = 307,859,532.62
  5. Step 5: Solve for x
    x = 307,859,532.62/20,069.28
  6. Step 6: Final answer
    x = 15,339.84

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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.