Home / 20,501.82-28,295.22-11,551.10

Finding the Fourth Proportional to 20,501.82, 28,295.22 and 11,551.10

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Solution

The fourth proportional to 20,501.82, 28,295.22 and 11,551.10 is: 15,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.82 : 28,295.22 = 11,551.10 : x
  2. Step 2: Convert to fraction form
    20,501.82/28,295.22 = 11,551.10/x
  3. Step 3: Cross multiply
    20,501.82x = 28,295.22 × 11,551.10
  4. Step 4: Simplify right side
    20,501.82x = 326,840,915.74
  5. Step 5: Solve for x
    x = 326,840,915.74/20,501.82
  6. Step 6: Final answer
    x = 15,942.04

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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.