Home / 27,910.08-38,486.88-21,537.72

Finding the Fourth Proportional to 27,910.08, 38,486.88 and 21,537.72

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Solution

The fourth proportional to 27,910.08, 38,486.88 and 21,537.72 is: 29,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.08 : 38,486.88 = 21,537.72 : x
  2. Step 2: Convert to fraction form
    27,910.08/38,486.88 = 21,537.72/x
  3. Step 3: Cross multiply
    27,910.08x = 38,486.88 × 21,537.72
  4. Step 4: Simplify right side
    27,910.08x = 828,919,645.11
  5. Step 5: Solve for x
    x = 828,919,645.11/27,910.08
  6. Step 6: Final answer
    x = 29,699.65

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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.