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Finding the Fourth Proportional to 31,881.42, 43,999.02 and 17,736.93

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Solution

The fourth proportional to 31,881.42, 43,999.02 and 17,736.93 is: 24,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.42 : 43,999.02 = 17,736.93 : x
  2. Step 2: Convert to fraction form
    31,881.42/43,999.02 = 17,736.93/x
  3. Step 3: Cross multiply
    31,881.42x = 43,999.02 × 17,736.93
  4. Step 4: Simplify right side
    31,881.42x = 780,407,537.81
  5. Step 5: Solve for x
    x = 780,407,537.81/31,881.42
  6. Step 6: Final answer
    x = 24,478.44

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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.