Home / 38,137-52,631.94-21,371.08

Finding the Fourth Proportional to 38,137, 52,631.94 and 21,371.08

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Solution

The fourth proportional to 38,137, 52,631.94 and 21,371.08 is: 29,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137 : 52,631.94 = 21,371.08 : x
  2. Step 2: Convert to fraction form
    38,137/52,631.94 = 21,371.08/x
  3. Step 3: Cross multiply
    38,137x = 52,631.94 × 21,371.08
  4. Step 4: Simplify right side
    38,137x = 1,124,801,400.30
  5. Step 5: Solve for x
    x = 1,124,801,400.30/38,137
  6. Step 6: Final answer
    x = 29,493.70

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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.