Home / 39,984.43-55,178.50-22,079.47

Finding the Fourth Proportional to 39,984.43, 55,178.50 and 22,079.47

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Solution

The fourth proportional to 39,984.43, 55,178.50 and 22,079.47 is: 30,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.43 : 55,178.50 = 22,079.47 : x
  2. Step 2: Convert to fraction form
    39,984.43/55,178.50 = 22,079.47/x
  3. Step 3: Cross multiply
    39,984.43x = 55,178.50 × 22,079.47
  4. Step 4: Simplify right side
    39,984.43x = 1,218,312,035.40
  5. Step 5: Solve for x
    x = 1,218,312,035.40/39,984.43
  6. Step 6: Final answer
    x = 30,469.66

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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.