Home / 21,850.44-30,129.69-14,764.56

Finding the Fourth Proportional to 21,850.44, 30,129.69 and 14,764.56

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Solution

The fourth proportional to 21,850.44, 30,129.69 and 14,764.56 is: 20,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.44 : 30,129.69 = 14,764.56 : x
  2. Step 2: Convert to fraction form
    21,850.44/30,129.69 = 14,764.56/x
  3. Step 3: Cross multiply
    21,850.44x = 30,129.69 × 14,764.56
  4. Step 4: Simplify right side
    21,850.44x = 444,851,615.79
  5. Step 5: Solve for x
    x = 444,851,615.79/21,850.44
  6. Step 6: Final answer
    x = 20,358.93

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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.