Home / 21,399.99-29,539.92-16,110.15

Finding the Fourth Proportional to 21,399.99, 29,539.92 and 16,110.15

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Solution

The fourth proportional to 21,399.99, 29,539.92 and 16,110.15 is: 22,237.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.99 : 29,539.92 = 16,110.15 : x
  2. Step 2: Convert to fraction form
    21,399.99/29,539.92 = 16,110.15/x
  3. Step 3: Cross multiply
    21,399.99x = 29,539.92 × 16,110.15
  4. Step 4: Simplify right side
    21,399.99x = 475,892,542.19
  5. Step 5: Solve for x
    x = 475,892,542.19/21,399.99
  6. Step 6: Final answer
    x = 22,237.98

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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.