Home / 21,040.16-31,596.98-19,394.24

Finding the Fourth Proportional to 21,040.16, 31,596.98 and 19,394.24

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Solution

The fourth proportional to 21,040.16, 31,596.98 and 19,394.24 is: 29,125.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.16 : 31,596.98 = 19,394.24 : x
  2. Step 2: Convert to fraction form
    21,040.16/31,596.98 = 19,394.24/x
  3. Step 3: Cross multiply
    21,040.16x = 31,596.98 × 19,394.24
  4. Step 4: Simplify right side
    21,040.16x = 612,799,413.40
  5. Step 5: Solve for x
    x = 612,799,413.40/21,040.16
  6. Step 6: Final answer
    x = 29,125.23

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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.