Home / 17,285.76-23,821.20-11,970.72

Finding the Fourth Proportional to 17,285.76, 23,821.20 and 11,970.72

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Solution

The fourth proportional to 17,285.76, 23,821.20 and 11,970.72 is: 16,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,285.76 : 23,821.20 = 11,970.72 : x
  2. Step 2: Convert to fraction form
    17,285.76/23,821.20 = 11,970.72/x
  3. Step 3: Cross multiply
    17,285.76x = 23,821.20 × 11,970.72
  4. Step 4: Simplify right side
    17,285.76x = 285,156,915.26
  5. Step 5: Solve for x
    x = 285,156,915.26/17,285.76
  6. Step 6: Final answer
    x = 16,496.64

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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.