Home / 20,025.89-27,636.17-11,074.40

Finding the Fourth Proportional to 20,025.89, 27,636.17 and 11,074.40

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Solution

The fourth proportional to 20,025.89, 27,636.17 and 11,074.40 is: 15,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.89 : 27,636.17 = 11,074.40 : x
  2. Step 2: Convert to fraction form
    20,025.89/27,636.17 = 11,074.40/x
  3. Step 3: Cross multiply
    20,025.89x = 27,636.17 × 11,074.40
  4. Step 4: Simplify right side
    20,025.89x = 306,053,807.50
  5. Step 5: Solve for x
    x = 306,053,807.50/20,025.89
  6. Step 6: Final answer
    x = 15,282.91

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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.