Home / 43,071.65-64,608.69-11,906.90

Finding the Fourth Proportional to 43,071.65, 64,608.69 and 11,906.90

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Solution

The fourth proportional to 43,071.65, 64,608.69 and 11,906.90 is: 17,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,071.65 : 64,608.69 = 11,906.90 : x
  2. Step 2: Convert to fraction form
    43,071.65/64,608.69 = 11,906.90/x
  3. Step 3: Cross multiply
    43,071.65x = 64,608.69 × 11,906.90
  4. Step 4: Simplify right side
    43,071.65x = 769,289,417.13
  5. Step 5: Solve for x
    x = 769,289,417.13/43,071.65
  6. Step 6: Final answer
    x = 17,860.69

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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.