Home / 38,135.14-52,629.64-21,144.71

Finding the Fourth Proportional to 38,135.14, 52,629.64 and 21,144.71

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Solution

The fourth proportional to 38,135.14, 52,629.64 and 21,144.71 is: 29,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135.14 : 52,629.64 = 21,144.71 : x
  2. Step 2: Convert to fraction form
    38,135.14/52,629.64 = 21,144.71/x
  3. Step 3: Cross multiply
    38,135.14x = 52,629.64 × 21,144.71
  4. Step 4: Simplify right side
    38,135.14x = 1,112,838,553.92
  5. Step 5: Solve for x
    x = 1,112,838,553.92/38,135.14
  6. Step 6: Final answer
    x = 29,181.45

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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.