Home / 21,284.88-29,376.63-16,239.56

Finding the Fourth Proportional to 21,284.88, 29,376.63 and 16,239.56

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Solution

The fourth proportional to 21,284.88, 29,376.63 and 16,239.56 is: 22,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.88 : 29,376.63 = 16,239.56 : x
  2. Step 2: Convert to fraction form
    21,284.88/29,376.63 = 16,239.56/x
  3. Step 3: Cross multiply
    21,284.88x = 29,376.63 × 16,239.56
  4. Step 4: Simplify right side
    21,284.88x = 477,063,545.48
  5. Step 5: Solve for x
    x = 477,063,545.48/21,284.88
  6. Step 6: Final answer
    x = 22,413.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.