Home / 20,506.43-30,759.70-11,735.19

Finding the Fourth Proportional to 20,506.43, 30,759.70 and 11,735.19

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Solution

The fourth proportional to 20,506.43, 30,759.70 and 11,735.19 is: 17,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.43 : 30,759.70 = 11,735.19 : x
  2. Step 2: Convert to fraction form
    20,506.43/30,759.70 = 11,735.19/x
  3. Step 3: Cross multiply
    20,506.43x = 30,759.70 × 11,735.19
  4. Step 4: Simplify right side
    20,506.43x = 360,970,959.76
  5. Step 5: Solve for x
    x = 360,970,959.76/20,506.43
  6. Step 6: Final answer
    x = 17,602.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.