Home / 43,785.63-65,672.28-14,203.72

Finding the Fourth Proportional to 43,785.63, 65,672.28 and 14,203.72

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Solution

The fourth proportional to 43,785.63, 65,672.28 and 14,203.72 is: 21,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,785.63 : 65,672.28 = 14,203.72 : x
  2. Step 2: Convert to fraction form
    43,785.63/65,672.28 = 14,203.72/x
  3. Step 3: Cross multiply
    43,785.63x = 65,672.28 × 14,203.72
  4. Step 4: Simplify right side
    43,785.63x = 932,790,676.88
  5. Step 5: Solve for x
    x = 932,790,676.88/43,785.63
  6. Step 6: Final answer
    x = 21,303.58

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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.