Home / 21,456.99-32,190.75-17,334.36

Finding the Fourth Proportional to 21,456.99, 32,190.75 and 17,334.36

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Solution

The fourth proportional to 21,456.99, 32,190.75 and 17,334.36 is: 26,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.99 : 32,190.75 = 17,334.36 : x
  2. Step 2: Convert to fraction form
    21,456.99/32,190.75 = 17,334.36/x
  3. Step 3: Cross multiply
    21,456.99x = 32,190.75 × 17,334.36
  4. Step 4: Simplify right side
    21,456.99x = 558,006,049.17
  5. Step 5: Solve for x
    x = 558,006,049.17/21,456.99
  6. Step 6: Final answer
    x = 26,005.79

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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.