Home / 21,025.12-31,537.68-11,797.60

Finding the Fourth Proportional to 21,025.12, 31,537.68 and 11,797.60

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Solution

The fourth proportional to 21,025.12, 31,537.68 and 11,797.60 is: 17,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.12 : 31,537.68 = 11,797.60 : x
  2. Step 2: Convert to fraction form
    21,025.12/31,537.68 = 11,797.60/x
  3. Step 3: Cross multiply
    21,025.12x = 31,537.68 × 11,797.60
  4. Step 4: Simplify right side
    21,025.12x = 372,068,933.57
  5. Step 5: Solve for x
    x = 372,068,933.57/21,025.12
  6. Step 6: Final answer
    x = 17,696.40

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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.