Home / 38,387.39-52,962.12-21,388.37

Finding the Fourth Proportional to 38,387.39, 52,962.12 and 21,388.37

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Solution

The fourth proportional to 38,387.39, 52,962.12 and 21,388.37 is: 29,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,387.39 : 52,962.12 = 21,388.37 : x
  2. Step 2: Convert to fraction form
    38,387.39/52,962.12 = 21,388.37/x
  3. Step 3: Cross multiply
    38,387.39x = 52,962.12 × 21,388.37
  4. Step 4: Simplify right side
    38,387.39x = 1,132,773,137.98
  5. Step 5: Solve for x
    x = 1,132,773,137.98/38,387.39
  6. Step 6: Final answer
    x = 29,508.99

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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.