Home / 39,168.63-54,052.82-21,263.72

Finding the Fourth Proportional to 39,168.63, 54,052.82 and 21,263.72

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Solution

The fourth proportional to 39,168.63, 54,052.82 and 21,263.72 is: 29,343.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.63 : 54,052.82 = 21,263.72 : x
  2. Step 2: Convert to fraction form
    39,168.63/54,052.82 = 21,263.72/x
  3. Step 3: Cross multiply
    39,168.63x = 54,052.82 × 21,263.72
  4. Step 4: Simplify right side
    39,168.63x = 1,149,363,732.85
  5. Step 5: Solve for x
    x = 1,149,363,732.85/39,168.63
  6. Step 6: Final answer
    x = 29,343.99

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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.