Home / 21,072.65-31,608.96-11,708.18

Finding the Fourth Proportional to 21,072.65, 31,608.96 and 11,708.18

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Solution

The fourth proportional to 21,072.65, 31,608.96 and 11,708.18 is: 17,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.65 : 31,608.96 = 11,708.18 : x
  2. Step 2: Convert to fraction form
    21,072.65/31,608.96 = 11,708.18/x
  3. Step 3: Cross multiply
    21,072.65x = 31,608.96 × 11,708.18
  4. Step 4: Simplify right side
    21,072.65x = 370,083,235.25
  5. Step 5: Solve for x
    x = 370,083,235.25/21,072.65
  6. Step 6: Final answer
    x = 17,562.26

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1.5x scale

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.