Home / 20,738.07-28,618.26-11,306.64

Finding the Fourth Proportional to 20,738.07, 28,618.26 and 11,306.64

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Solution

The fourth proportional to 20,738.07, 28,618.26 and 11,306.64 is: 15,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.07 : 28,618.26 = 11,306.64 : x
  2. Step 2: Convert to fraction form
    20,738.07/28,618.26 = 11,306.64/x
  3. Step 3: Cross multiply
    20,738.07x = 28,618.26 × 11,306.64
  4. Step 4: Simplify right side
    20,738.07x = 323,576,363.25
  5. Step 5: Solve for x
    x = 323,576,363.25/20,738.07
  6. Step 6: Final answer
    x = 15,603.01

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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.