Home / 22,489.55-31,039.32-13,416.09

Finding the Fourth Proportional to 22,489.55, 31,039.32 and 13,416.09

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Solution

The fourth proportional to 22,489.55, 31,039.32 and 13,416.09 is: 18,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.55 : 31,039.32 = 13,416.09 : x
  2. Step 2: Convert to fraction form
    22,489.55/31,039.32 = 13,416.09/x
  3. Step 3: Cross multiply
    22,489.55x = 31,039.32 × 13,416.09
  4. Step 4: Simplify right side
    22,489.55x = 416,426,169.11
  5. Step 5: Solve for x
    x = 416,426,169.11/22,489.55
  6. Step 6: Final answer
    x = 18,516.43

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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.