Home / 31,607.66-43,627.25-19,663.87

Finding the Fourth Proportional to 31,607.66, 43,627.25 and 19,663.87

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Solution

The fourth proportional to 31,607.66, 43,627.25 and 19,663.87 is: 27,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.66 : 43,627.25 = 19,663.87 : x
  2. Step 2: Convert to fraction form
    31,607.66/43,627.25 = 19,663.87/x
  3. Step 3: Cross multiply
    31,607.66x = 43,627.25 × 19,663.87
  4. Step 4: Simplify right side
    31,607.66x = 857,880,572.46
  5. Step 5: Solve for x
    x = 857,880,572.46/31,607.66
  6. Step 6: Final answer
    x = 27,141.54

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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.