Home / 31,607.22-43,626.65-19,663.43

Finding the Fourth Proportional to 31,607.22, 43,626.65 and 19,663.43

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Solution

The fourth proportional to 31,607.22, 43,626.65 and 19,663.43 is: 27,140.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.22 : 43,626.65 = 19,663.43 : x
  2. Step 2: Convert to fraction form
    31,607.22/43,626.65 = 19,663.43/x
  3. Step 3: Cross multiply
    31,607.22x = 43,626.65 × 19,663.43
  4. Step 4: Simplify right side
    31,607.22x = 857,849,578.41
  5. Step 5: Solve for x
    x = 857,849,578.41/31,607.22
  6. Step 6: Final answer
    x = 27,140.94

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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.