Home / 20,561.32-30,837.37-9,457.34

Finding the Fourth Proportional to 20,561.32, 30,837.37 and 9,457.34

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Solution

The fourth proportional to 20,561.32, 30,837.37 and 9,457.34 is: 14,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.32 : 30,837.37 = 9,457.34 : x
  2. Step 2: Convert to fraction form
    20,561.32/30,837.37 = 9,457.34/x
  3. Step 3: Cross multiply
    20,561.32x = 30,837.37 × 9,457.34
  4. Step 4: Simplify right side
    20,561.32x = 291,639,522.60
  5. Step 5: Solve for x
    x = 291,639,522.60/20,561.32
  6. Step 6: Final answer
    x = 14,183.89

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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.