Home / 31,418.72-43,343.38-27,837.34

Finding the Fourth Proportional to 31,418.72, 43,343.38 and 27,837.34

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Solution

The fourth proportional to 31,418.72, 43,343.38 and 27,837.34 is: 38,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.72 : 43,343.38 = 27,837.34 : x
  2. Step 2: Convert to fraction form
    31,418.72/43,343.38 = 27,837.34/x
  3. Step 3: Cross multiply
    31,418.72x = 43,343.38 × 27,837.34
  4. Step 4: Simplify right side
    31,418.72x = 1,206,564,405.81
  5. Step 5: Solve for x
    x = 1,206,564,405.81/31,418.72
  6. Step 6: Final answer
    x = 38,402.72

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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.