Home / 21,089.24-29,102.92-11,657.60

Finding the Fourth Proportional to 21,089.24, 29,102.92 and 11,657.60

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Solution

The fourth proportional to 21,089.24, 29,102.92 and 11,657.60 is: 16,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.24 : 29,102.92 = 11,657.60 : x
  2. Step 2: Convert to fraction form
    21,089.24/29,102.92 = 11,657.60/x
  3. Step 3: Cross multiply
    21,089.24x = 29,102.92 × 11,657.60
  4. Step 4: Simplify right side
    21,089.24x = 339,270,200.19
  5. Step 5: Solve for x
    x = 339,270,200.19/21,089.24
  6. Step 6: Final answer
    x = 16,087.36

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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.