Home / 23,028.17-31,777.18-12,819.60

Finding the Fourth Proportional to 23,028.17, 31,777.18 and 12,819.60

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Solution

The fourth proportional to 23,028.17, 31,777.18 and 12,819.60 is: 17,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,028.17 : 31,777.18 = 12,819.60 : x
  2. Step 2: Convert to fraction form
    23,028.17/31,777.18 = 12,819.60/x
  3. Step 3: Cross multiply
    23,028.17x = 31,777.18 × 12,819.60
  4. Step 4: Simplify right side
    23,028.17x = 407,370,704.68
  5. Step 5: Solve for x
    x = 407,370,704.68/23,028.17
  6. Step 6: Final answer
    x = 17,690.11

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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.