Home / 20,077.03-27,695.15-12,795.54

Finding the Fourth Proportional to 20,077.03, 27,695.15 and 12,795.54

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Solution

The fourth proportional to 20,077.03, 27,695.15 and 12,795.54 is: 17,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.03 : 27,695.15 = 12,795.54 : x
  2. Step 2: Convert to fraction form
    20,077.03/27,695.15 = 12,795.54/x
  3. Step 3: Cross multiply
    20,077.03x = 27,695.15 × 12,795.54
  4. Step 4: Simplify right side
    20,077.03x = 354,374,279.78
  5. Step 5: Solve for x
    x = 354,374,279.78/20,077.03
  6. Step 6: Final answer
    x = 17,650.73

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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.