Home / 31,827.51-43,917.07-18,396.16

Finding the Fourth Proportional to 31,827.51, 43,917.07 and 18,396.16

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Solution

The fourth proportional to 31,827.51, 43,917.07 and 18,396.16 is: 25,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.51 : 43,917.07 = 18,396.16 : x
  2. Step 2: Convert to fraction form
    31,827.51/43,917.07 = 18,396.16/x
  3. Step 3: Cross multiply
    31,827.51x = 43,917.07 × 18,396.16
  4. Step 4: Simplify right side
    31,827.51x = 807,905,446.45
  5. Step 5: Solve for x
    x = 807,905,446.45/31,827.51
  6. Step 6: Final answer
    x = 25,383.87

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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.