Home / 20,258.22-27,955-12,704.23

Finding the Fourth Proportional to 20,258.22, 27,955 and 12,704.23

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Solution

The fourth proportional to 20,258.22, 27,955 and 12,704.23 is: 17,530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.22 : 27,955 = 12,704.23 : x
  2. Step 2: Convert to fraction form
    20,258.22/27,955 = 12,704.23/x
  3. Step 3: Cross multiply
    20,258.22x = 27,955 × 12,704.23
  4. Step 4: Simplify right side
    20,258.22x = 355,146,749.65
  5. Step 5: Solve for x
    x = 355,146,749.65/20,258.22
  6. Step 6: Final answer
    x = 17,530.99

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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.