Home / 27,805.39-38,371.25-15,058.28

Finding the Fourth Proportional to 27,805.39, 38,371.25 and 15,058.28

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Solution

The fourth proportional to 27,805.39, 38,371.25 and 15,058.28 is: 20,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,805.39 : 38,371.25 = 15,058.28 : x
  2. Step 2: Convert to fraction form
    27,805.39/38,371.25 = 15,058.28/x
  3. Step 3: Cross multiply
    27,805.39x = 38,371.25 × 15,058.28
  4. Step 4: Simplify right side
    27,805.39x = 577,805,202.45
  5. Step 5: Solve for x
    x = 577,805,202.45/27,805.39
  6. Step 6: Final answer
    x = 20,780.33

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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.