Home / 40,998.60-61,534.32-21,290.76

Finding the Fourth Proportional to 40,998.60, 61,534.32 and 21,290.76

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Solution

The fourth proportional to 40,998.60, 61,534.32 and 21,290.76 is: 31,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,998.60 : 61,534.32 = 21,290.76 : x
  2. Step 2: Convert to fraction form
    40,998.60/61,534.32 = 21,290.76/x
  3. Step 3: Cross multiply
    40,998.60x = 61,534.32 × 21,290.76
  4. Step 4: Simplify right side
    40,998.60x = 1,310,112,438.88
  5. Step 5: Solve for x
    x = 1,310,112,438.88/40,998.60
  6. Step 6: Final answer
    x = 31,955.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.