Home / 20,825.34-31,224.12-11,469.74

Finding the Fourth Proportional to 20,825.34, 31,224.12 and 11,469.74

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Solution

The fourth proportional to 20,825.34, 31,224.12 and 11,469.74 is: 17,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825.34 : 31,224.12 = 11,469.74 : x
  2. Step 2: Convert to fraction form
    20,825.34/31,224.12 = 11,469.74/x
  3. Step 3: Cross multiply
    20,825.34x = 31,224.12 × 11,469.74
  4. Step 4: Simplify right side
    20,825.34x = 358,132,339.00
  5. Step 5: Solve for x
    x = 358,132,339.00/20,825.34
  6. Step 6: Final answer
    x = 17,196.95

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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.