Home / 43,394.18-65,091.81-13,811.90

Finding the Fourth Proportional to 43,394.18, 65,091.81 and 13,811.90

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Solution

The fourth proportional to 43,394.18, 65,091.81 and 13,811.90 is: 20,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,394.18 : 65,091.81 = 13,811.90 : x
  2. Step 2: Convert to fraction form
    43,394.18/65,091.81 = 13,811.90/x
  3. Step 3: Cross multiply
    43,394.18x = 65,091.81 × 13,811.90
  4. Step 4: Simplify right side
    43,394.18x = 899,041,570.54
  5. Step 5: Solve for x
    x = 899,041,570.54/43,394.18
  6. Step 6: Final answer
    x = 20,718.02

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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.