Home / 20,039.45-27,652.32-11,085.53

Finding the Fourth Proportional to 20,039.45, 27,652.32 and 11,085.53

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Solution

The fourth proportional to 20,039.45, 27,652.32 and 11,085.53 is: 15,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.45 : 27,652.32 = 11,085.53 : x
  2. Step 2: Convert to fraction form
    20,039.45/27,652.32 = 11,085.53/x
  3. Step 3: Cross multiply
    20,039.45x = 27,652.32 × 11,085.53
  4. Step 4: Simplify right side
    20,039.45x = 306,540,484.67
  5. Step 5: Solve for x
    x = 306,540,484.67/20,039.45
  6. Step 6: Final answer
    x = 15,296.86

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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.