Home / 18,556.10-27,785.55-13,598.90

Finding the Fourth Proportional to 18,556.10, 27,785.55 and 13,598.90

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Solution

The fourth proportional to 18,556.10, 27,785.55 and 13,598.90 is: 20,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.10 : 27,785.55 = 13,598.90 : x
  2. Step 2: Convert to fraction form
    18,556.10/27,785.55 = 13,598.90/x
  3. Step 3: Cross multiply
    18,556.10x = 27,785.55 × 13,598.90
  4. Step 4: Simplify right side
    18,556.10x = 377,852,915.90
  5. Step 5: Solve for x
    x = 377,852,915.90/18,556.10
  6. Step 6: Final answer
    x = 20,362.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.