Home / 21,019.26-29,008.61-13,370.57

Finding the Fourth Proportional to 21,019.26, 29,008.61 and 13,370.57

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Solution

The fourth proportional to 21,019.26, 29,008.61 and 13,370.57 is: 18,452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.26 : 29,008.61 = 13,370.57 : x
  2. Step 2: Convert to fraction form
    21,019.26/29,008.61 = 13,370.57/x
  3. Step 3: Cross multiply
    21,019.26x = 29,008.61 × 13,370.57
  4. Step 4: Simplify right side
    21,019.26x = 387,861,597.63
  5. Step 5: Solve for x
    x = 387,861,597.63/21,019.26
  6. Step 6: Final answer
    x = 18,452.67

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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.