Home / 27,626.77-38,149.29-20,540.89

Finding the Fourth Proportional to 27,626.77, 38,149.29 and 20,540.89

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Solution

The fourth proportional to 27,626.77, 38,149.29 and 20,540.89 is: 28,364.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,626.77 : 38,149.29 = 20,540.89 : x
  2. Step 2: Convert to fraction form
    27,626.77/38,149.29 = 20,540.89/x
  3. Step 3: Cross multiply
    27,626.77x = 38,149.29 × 20,540.89
  4. Step 4: Simplify right side
    27,626.77x = 783,620,369.47
  5. Step 5: Solve for x
    x = 783,620,369.47/27,626.77
  6. Step 6: Final answer
    x = 28,364.53

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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.