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Finding the Fourth Proportional to 21,823.91, 32,750.22 and 11,970.11

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Solution

The fourth proportional to 21,823.91, 32,750.22 and 11,970.11 is: 17,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.91 : 32,750.22 = 11,970.11 : x
  2. Step 2: Convert to fraction form
    21,823.91/32,750.22 = 11,970.11/x
  3. Step 3: Cross multiply
    21,823.91x = 32,750.22 × 11,970.11
  4. Step 4: Simplify right side
    21,823.91x = 392,023,735.92
  5. Step 5: Solve for x
    x = 392,023,735.92/21,823.91
  6. Step 6: Final answer
    x = 17,963.04

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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.