Home / 39,124.11-53,991.66-22,128.53

Finding the Fourth Proportional to 39,124.11, 53,991.66 and 22,128.53

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Solution

The fourth proportional to 39,124.11, 53,991.66 and 22,128.53 is: 30,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,124.11 : 53,991.66 = 22,128.53 : x
  2. Step 2: Convert to fraction form
    39,124.11/53,991.66 = 22,128.53/x
  3. Step 3: Cross multiply
    39,124.11x = 53,991.66 × 22,128.53
  4. Step 4: Simplify right side
    39,124.11x = 1,194,755,881.08
  5. Step 5: Solve for x
    x = 1,194,755,881.08/39,124.11
  6. Step 6: Final answer
    x = 30,537.58

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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.