Home / 22,771.29-31,426.62-13,818.09

Finding the Fourth Proportional to 22,771.29, 31,426.62 and 13,818.09

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Solution

The fourth proportional to 22,771.29, 31,426.62 and 13,818.09 is: 19,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,771.29 : 31,426.62 = 13,818.09 : x
  2. Step 2: Convert to fraction form
    22,771.29/31,426.62 = 13,818.09/x
  3. Step 3: Cross multiply
    22,771.29x = 31,426.62 × 13,818.09
  4. Step 4: Simplify right side
    22,771.29x = 434,255,863.56
  5. Step 5: Solve for x
    x = 434,255,863.56/22,771.29
  6. Step 6: Final answer
    x = 19,070.32

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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.