Home / 31,837.13-43,916.94-19,879.71

Finding the Fourth Proportional to 31,837.13, 43,916.94 and 19,879.71

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Solution

The fourth proportional to 31,837.13, 43,916.94 and 19,879.71 is: 27,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.13 : 43,916.94 = 19,879.71 : x
  2. Step 2: Convert to fraction form
    31,837.13/43,916.94 = 19,879.71/x
  3. Step 3: Cross multiply
    31,837.13x = 43,916.94 × 19,879.71
  4. Step 4: Simplify right side
    31,837.13x = 873,056,031.29
  5. Step 5: Solve for x
    x = 873,056,031.29/31,837.13
  6. Step 6: Final answer
    x = 27,422.57

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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.