Home / 43,364.06-65,043.76-13,779.57

Finding the Fourth Proportional to 43,364.06, 65,043.76 and 13,779.57

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Solution

The fourth proportional to 43,364.06, 65,043.76 and 13,779.57 is: 20,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,364.06 : 65,043.76 = 13,779.57 : x
  2. Step 2: Convert to fraction form
    43,364.06/65,043.76 = 13,779.57/x
  3. Step 3: Cross multiply
    43,364.06x = 65,043.76 × 13,779.57
  4. Step 4: Simplify right side
    43,364.06x = 896,274,913.41
  5. Step 5: Solve for x
    x = 896,274,913.41/43,364.06
  6. Step 6: Final answer
    x = 20,668.61

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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.