Home / 21,617.32-32,446.20-13,313.54

Finding the Fourth Proportional to 21,617.32, 32,446.20 and 13,313.54

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Solution

The fourth proportional to 21,617.32, 32,446.20 and 13,313.54 is: 19,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.32 : 32,446.20 = 13,313.54 : x
  2. Step 2: Convert to fraction form
    21,617.32/32,446.20 = 13,313.54/x
  3. Step 3: Cross multiply
    21,617.32x = 32,446.20 × 13,313.54
  4. Step 4: Simplify right side
    21,617.32x = 431,973,781.55
  5. Step 5: Solve for x
    x = 431,973,781.55/21,617.32
  6. Step 6: Final answer
    x = 19,982.76

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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.