Home / 43,167.40-64,751.09-20,961.74

Finding the Fourth Proportional to 43,167.40, 64,751.09 and 20,961.74

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Solution

The fourth proportional to 43,167.40, 64,751.09 and 20,961.74 is: 31,442.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,167.40 : 64,751.09 = 20,961.74 : x
  2. Step 2: Convert to fraction form
    43,167.40/64,751.09 = 20,961.74/x
  3. Step 3: Cross multiply
    43,167.40x = 64,751.09 × 20,961.74
  4. Step 4: Simplify right side
    43,167.40x = 1,357,295,513.30
  5. Step 5: Solve for x
    x = 1,357,295,513.30/43,167.40
  6. Step 6: Final answer
    x = 31,442.61

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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.