Home / 21,010.98-31,512.42-9,610.03

Finding the Fourth Proportional to 21,010.98, 31,512.42 and 9,610.03

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Solution

The fourth proportional to 21,010.98, 31,512.42 and 9,610.03 is: 14,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.98 : 31,512.42 = 9,610.03 : x
  2. Step 2: Convert to fraction form
    21,010.98/31,512.42 = 9,610.03/x
  3. Step 3: Cross multiply
    21,010.98x = 31,512.42 × 9,610.03
  4. Step 4: Simplify right side
    21,010.98x = 302,835,301.57
  5. Step 5: Solve for x
    x = 302,835,301.57/21,010.98
  6. Step 6: Final answer
    x = 14,413.19

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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.