Home / 39,638.30-54,700.47-21,733.27

Finding the Fourth Proportional to 39,638.30, 54,700.47 and 21,733.27

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Solution

The fourth proportional to 39,638.30, 54,700.47 and 21,733.27 is: 29,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638.30 : 54,700.47 = 21,733.27 : x
  2. Step 2: Convert to fraction form
    39,638.30/54,700.47 = 21,733.27/x
  3. Step 3: Cross multiply
    39,638.30x = 54,700.47 × 21,733.27
  4. Step 4: Simplify right side
    39,638.30x = 1,188,819,946.89
  5. Step 5: Solve for x
    x = 1,188,819,946.89/39,638.30
  6. Step 6: Final answer
    x = 29,991.70

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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.