Home / 39,085.56-53,937.93-21,181

Finding the Fourth Proportional to 39,085.56, 53,937.93 and 21,181

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Solution

The fourth proportional to 39,085.56, 53,937.93 and 21,181 is: 29,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,085.56 : 53,937.93 = 21,181 : x
  2. Step 2: Convert to fraction form
    39,085.56/53,937.93 = 21,181/x
  3. Step 3: Cross multiply
    39,085.56x = 53,937.93 × 21,181
  4. Step 4: Simplify right side
    39,085.56x = 1,142,459,295.33
  5. Step 5: Solve for x
    x = 1,142,459,295.33/39,085.56
  6. Step 6: Final answer
    x = 29,229.70

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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.