Home / 20,255.40-27,952.45-11,302.96

Finding the Fourth Proportional to 20,255.40, 27,952.45 and 11,302.96

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Solution

The fourth proportional to 20,255.40, 27,952.45 and 11,302.96 is: 15,598.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.40 : 27,952.45 = 11,302.96 : x
  2. Step 2: Convert to fraction form
    20,255.40/27,952.45 = 11,302.96/x
  3. Step 3: Cross multiply
    20,255.40x = 27,952.45 × 11,302.96
  4. Step 4: Simplify right side
    20,255.40x = 315,945,297.86
  5. Step 5: Solve for x
    x = 315,945,297.86/20,255.40
  6. Step 6: Final answer
    x = 15,598.08

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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.