Home / 27,765.30-38,322.12-17,691.36

Finding the Fourth Proportional to 27,765.30, 38,322.12 and 17,691.36

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Solution

The fourth proportional to 27,765.30, 38,322.12 and 17,691.36 is: 24,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.30 : 38,322.12 = 17,691.36 : x
  2. Step 2: Convert to fraction form
    27,765.30/38,322.12 = 17,691.36/x
  3. Step 3: Cross multiply
    27,765.30x = 38,322.12 × 17,691.36
  4. Step 4: Simplify right side
    27,765.30x = 677,970,420.88
  5. Step 5: Solve for x
    x = 677,970,420.88/27,765.30
  6. Step 6: Final answer
    x = 24,417.90

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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.