Home / 22,743.96-31,387.62-12,672.39

Finding the Fourth Proportional to 22,743.96, 31,387.62 and 12,672.39

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Solution

The fourth proportional to 22,743.96, 31,387.62 and 12,672.39 is: 17,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,743.96 : 31,387.62 = 12,672.39 : x
  2. Step 2: Convert to fraction form
    22,743.96/31,387.62 = 12,672.39/x
  3. Step 3: Cross multiply
    22,743.96x = 31,387.62 × 12,672.39
  4. Step 4: Simplify right side
    22,743.96x = 397,756,161.81
  5. Step 5: Solve for x
    x = 397,756,161.81/22,743.96
  6. Step 6: Final answer
    x = 17,488.43

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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.