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Finding the Fourth Proportional to 31,902.60, 43,999.02 and 19,944.12

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Solution

The fourth proportional to 31,902.60, 43,999.02 and 19,944.12 is: 27,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.60 : 43,999.02 = 19,944.12 : x
  2. Step 2: Convert to fraction form
    31,902.60/43,999.02 = 19,944.12/x
  3. Step 3: Cross multiply
    31,902.60x = 43,999.02 × 19,944.12
  4. Step 4: Simplify right side
    31,902.60x = 877,521,734.76
  5. Step 5: Solve for x
    x = 877,521,734.76/31,902.60
  6. Step 6: Final answer
    x = 27,506.28

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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.