Home / 43,712.80-65,567.64-14,129.86

Finding the Fourth Proportional to 43,712.80, 65,567.64 and 14,129.86

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Solution

The fourth proportional to 43,712.80, 65,567.64 and 14,129.86 is: 21,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,712.80 : 65,567.64 = 14,129.86 : x
  2. Step 2: Convert to fraction form
    43,712.80/65,567.64 = 14,129.86/x
  3. Step 3: Cross multiply
    43,712.80x = 65,567.64 × 14,129.86
  4. Step 4: Simplify right side
    43,712.80x = 926,461,585.74
  5. Step 5: Solve for x
    x = 926,461,585.74/43,712.80
  6. Step 6: Final answer
    x = 21,194.29

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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.