Home / 21,842.13-30,142.35-12,410.76

Finding the Fourth Proportional to 21,842.13, 30,142.35 and 12,410.76

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Solution

The fourth proportional to 21,842.13, 30,142.35 and 12,410.76 is: 17,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.13 : 30,142.35 = 12,410.76 : x
  2. Step 2: Convert to fraction form
    21,842.13/30,142.35 = 12,410.76/x
  3. Step 3: Cross multiply
    21,842.13x = 30,142.35 × 12,410.76
  4. Step 4: Simplify right side
    21,842.13x = 374,089,471.69
  5. Step 5: Solve for x
    x = 374,089,471.69/21,842.13
  6. Step 6: Final answer
    x = 17,126.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.