Home / 20,157.74-30,236.88-7,010.36

Finding the Fourth Proportional to 20,157.74, 30,236.88 and 7,010.36

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Solution

The fourth proportional to 20,157.74, 30,236.88 and 7,010.36 is: 10,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.74 : 30,236.88 = 7,010.36 : x
  2. Step 2: Convert to fraction form
    20,157.74/30,236.88 = 7,010.36/x
  3. Step 3: Cross multiply
    20,157.74x = 30,236.88 × 7,010.36
  4. Step 4: Simplify right side
    20,157.74x = 211,971,414.08
  5. Step 5: Solve for x
    x = 211,971,414.08/20,157.74
  6. Step 6: Final answer
    x = 10,515.63

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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.