Home / 20,074.89-27,701.71-11,122.77

Finding the Fourth Proportional to 20,074.89, 27,701.71 and 11,122.77

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Solution

The fourth proportional to 20,074.89, 27,701.71 and 11,122.77 is: 15,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.89 : 27,701.71 = 11,122.77 : x
  2. Step 2: Convert to fraction form
    20,074.89/27,701.71 = 11,122.77/x
  3. Step 3: Cross multiply
    20,074.89x = 27,701.71 × 11,122.77
  4. Step 4: Simplify right side
    20,074.89x = 308,119,748.94
  5. Step 5: Solve for x
    x = 308,119,748.94/20,074.89
  6. Step 6: Final answer
    x = 15,348.51

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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.