Home / 39,325.03-54,269.21-21,419.98

Finding the Fourth Proportional to 39,325.03, 54,269.21 and 21,419.98

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Solution

The fourth proportional to 39,325.03, 54,269.21 and 21,419.98 is: 29,559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,325.03 : 54,269.21 = 21,419.98 : x
  2. Step 2: Convert to fraction form
    39,325.03/54,269.21 = 21,419.98/x
  3. Step 3: Cross multiply
    39,325.03x = 54,269.21 × 21,419.98
  4. Step 4: Simplify right side
    39,325.03x = 1,162,445,310.69
  5. Step 5: Solve for x
    x = 1,162,445,310.69/39,325.03
  6. Step 6: Final answer
    x = 29,559.94

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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.