Home / 38,129.92-52,616.64-21,135.04

Finding the Fourth Proportional to 38,129.92, 52,616.64 and 21,135.04

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Solution

The fourth proportional to 38,129.92, 52,616.64 and 21,135.04 is: 29,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.92 : 52,616.64 = 21,135.04 : x
  2. Step 2: Convert to fraction form
    38,129.92/52,616.64 = 21,135.04/x
  3. Step 3: Cross multiply
    38,129.92x = 52,616.64 × 21,135.04
  4. Step 4: Simplify right side
    38,129.92x = 1,112,054,791.07
  5. Step 5: Solve for x
    x = 1,112,054,791.07/38,129.92
  6. Step 6: Final answer
    x = 29,164.89

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1.5x scale

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.