Home / 21,828.44-30,099.41-14,742.56

Finding the Fourth Proportional to 21,828.44, 30,099.41 and 14,742.56

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Solution

The fourth proportional to 21,828.44, 30,099.41 and 14,742.56 is: 20,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.44 : 30,099.41 = 14,742.56 : x
  2. Step 2: Convert to fraction form
    21,828.44/30,099.41 = 14,742.56/x
  3. Step 3: Cross multiply
    21,828.44x = 30,099.41 × 14,742.56
  4. Step 4: Simplify right side
    21,828.44x = 443,742,357.89
  5. Step 5: Solve for x
    x = 443,742,357.89/21,828.44
  6. Step 6: Final answer
    x = 20,328.63

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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.