Home / 14,229-21,343.50-3,840.75

Finding the Fourth Proportional to 14,229, 21,343.50 and 3,840.75

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Solution

The fourth proportional to 14,229, 21,343.50 and 3,840.75 is: 5,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229 : 21,343.50 = 3,840.75 : x
  2. Step 2: Convert to fraction form
    14,229/21,343.50 = 3,840.75/x
  3. Step 3: Cross multiply
    14,229x = 21,343.50 × 3,840.75
  4. Step 4: Simplify right side
    14,229x = 81,975,047.63
  5. Step 5: Solve for x
    x = 81,975,047.63/14,229
  6. Step 6: Final answer
    x = 5,761.13

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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.