Home / 43,790.60-65,689.14-14,213.18

Finding the Fourth Proportional to 43,790.60, 65,689.14 and 14,213.18

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Solution

The fourth proportional to 43,790.60, 65,689.14 and 14,213.18 is: 21,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,790.60 : 65,689.14 = 14,213.18 : x
  2. Step 2: Convert to fraction form
    43,790.60/65,689.14 = 14,213.18/x
  3. Step 3: Cross multiply
    43,790.60x = 65,689.14 × 14,213.18
  4. Step 4: Simplify right side
    43,790.60x = 933,651,570.87
  5. Step 5: Solve for x
    x = 933,651,570.87/43,790.60
  6. Step 6: Final answer
    x = 21,320.82

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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.