Home / 39,996.72-55,177.20-23,220

Finding the Fourth Proportional to 39,996.72, 55,177.20 and 23,220

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Solution

The fourth proportional to 39,996.72, 55,177.20 and 23,220 is: 32,032.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.72 : 55,177.20 = 23,220 : x
  2. Step 2: Convert to fraction form
    39,996.72/55,177.20 = 23,220/x
  3. Step 3: Cross multiply
    39,996.72x = 55,177.20 × 23,220
  4. Step 4: Simplify right side
    39,996.72x = 1,281,214,584
  5. Step 5: Solve for x
    x = 1,281,214,584/39,996.72
  6. Step 6: Final answer
    x = 32,032.99

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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.