Home / 20,410.06-30,615.22-5,618.64

Finding the Fourth Proportional to 20,410.06, 30,615.22 and 5,618.64

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Solution

The fourth proportional to 20,410.06, 30,615.22 and 5,618.64 is: 8,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.06 : 30,615.22 = 5,618.64 : x
  2. Step 2: Convert to fraction form
    20,410.06/30,615.22 = 5,618.64/x
  3. Step 3: Cross multiply
    20,410.06x = 30,615.22 × 5,618.64
  4. Step 4: Simplify right side
    20,410.06x = 172,015,899.70
  5. Step 5: Solve for x
    x = 172,015,899.70/20,410.06
  6. Step 6: Final answer
    x = 8,428.00

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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.