Home / 20,483.56-30,725.35-11,712.33

Finding the Fourth Proportional to 20,483.56, 30,725.35 and 11,712.33

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Solution

The fourth proportional to 20,483.56, 30,725.35 and 11,712.33 is: 17,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.56 : 30,725.35 = 11,712.33 : x
  2. Step 2: Convert to fraction form
    20,483.56/30,725.35 = 11,712.33/x
  3. Step 3: Cross multiply
    20,483.56x = 30,725.35 × 11,712.33
  4. Step 4: Simplify right side
    20,483.56x = 359,865,226.38
  5. Step 5: Solve for x
    x = 359,865,226.38/20,483.56
  6. Step 6: Final answer
    x = 17,568.49

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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.