Home / 20,561.21-30,837.20-9,457.23

Finding the Fourth Proportional to 20,561.21, 30,837.20 and 9,457.23

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Solution

The fourth proportional to 20,561.21, 30,837.20 and 9,457.23 is: 14,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.21 : 30,837.20 = 9,457.23 : x
  2. Step 2: Convert to fraction form
    20,561.21/30,837.20 = 9,457.23/x
  3. Step 3: Cross multiply
    20,561.21x = 30,837.20 × 9,457.23
  4. Step 4: Simplify right side
    20,561.21x = 291,634,492.96
  5. Step 5: Solve for x
    x = 291,634,492.96/20,561.21
  6. Step 6: Final answer
    x = 14,183.72

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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.